Document:

<PAGE>
                                                                   EXHIBIT 10.16

                               AGREEMENT OF LEASE

                                    between

                      LIBERTY PROPERTY LIMITED PARTNERSHIP
                                    LANDLORD

                                      and

                         VALLEY FORGE SCIENTIFIC CORP.
                                     TENANT

                                      for

                               3600 Horizon Drive
                           King of Prussia, PA 19406
<PAGE>
                                LEASE AGREEMENT

                             (Multi-Tenant Office)

<Table>
<Caption>
INDEX
-----
                               SECTION                               PAGE
                               -------                               ----
<S>  <C>                                                             <C>
1.   Summary of Terms and Certain Definitions.......................   1

2.   Premises.......................................................   2

3.   Acceptance of Premises.........................................   2

4.   Use; Compliance................................................   2

5.   Term...........................................................   2

6.   Minimum Annual Rent............................................   2

7.   Operation of Property; Payment of Expenses.....................   3

8.   Signs..........................................................   5

9.   Alterations and Fixtures.......................................   5

10.  Mechanics' Liens...............................................   5

11.  Landlord's Right to Relocate Tenant; Right of Entry............   6

12.  Damage by Fire or Other Casualty...............................   6

13.  Condemnation...................................................   6

14.  Non-Abatement of Rent..........................................   7

15.  Indemnification of Landlord....................................   7

16.  Waiver of Claims...............................................   7

17.  Quiet Enjoyment................................................   7

18.  Assignment and Subletting......................................   7

19.  Subordination; Mortgagee's Rights..............................   8

20.  Recording; Tenant's Certificate................................   8

21.  Surrender, Abandoned Property..................................   8

22.  Curing Tenant's Defaults.......................................   9

23.  Defaults - Remedies............................................   9

24.  Representations of Tenant......................................  10

25.  Liability of Landlord..........................................  10

26.  Interpretation; Definitions....................................  11

27.  Notices........................................................  11

28.  Security Deposit...............................................  11

</Table>

                                       1
<PAGE>
     THIS LEASE AGREEMENT is made by and between LIBERTY PROPERTY LIMITED
PARTNERSHIP, a Pennsylvania limited partnership ("LANDLORD") with its address
at [ILLEGIBLE] Chesterfield Parkway, Malvern, PA 19335 and VALLEY FORGE
SCIENTIFIC CORP., a corporation organized under the laws of Pennsylvania
("TENANT") with its address at 136 [ILLEGIBLE] Tree Road, Oaks, PA 19456 and is
dated as of the date on which this lease has been fully executed by Landlord and
Tenant.

1.   SUMMARY OF TERMS AND CERTAIN DEFINITIONS.

     (a) "PREMISES": Approximate rentable square feet:  13,625      /s/ JM
         (Section 2) Suite: 110

     (b) "BUILDING": Approximate rentable square feet:  34,421
         (Section 2) Address:  3600 Horizon Drive, Renaissance Corporate Park,
                               Upper Township, Montgomery County, PA

     (c) "TERM": Thirty-six (36) months plus any partial month from the
         Commencement Date until the first     (Section 5)     day of the first
         full calendar month during the Term

         (i)   "COMMENCEMENT DATE": November 1, 2006

         (ii)  "EXPIRATION DATE": See Section 5

     (d) MINIMUM RENT (Section 6) & OPERATING EXPENSES (Section 7)

         (i)   "MINIMUM ANNUAL RENT": $114,648.00 (One Hundred Fourteen
Thousand Six Hundred Forty-eight and 00/100 Dollars), payable in monthly
installments of $9,554.00 (Nine Thousand Five Hundred Fifty-four and 00/100
Dollars), increased as follows:

<Table>
<Caption>
         Lease Year      Rate Per Sq. Ft.        Annual         Monthly
         ----------      ----------------     -----------     ----------
<S>                      <C>                  <C>             <C>
              1               $8.50           $115,812.50     $ 9,651.04
              2               $9.00           $122,625.00     $10,218.75
              3               $9.50           $129,437.50     $10,786.46
</Table>

         (ii)  ESTIMATED "ANNUAL OPERATING EXPENSES": $58,178.75 (Fifty-eight
Thousand One Hundred Seventy-eight and 75/100 Dollars), payable in monthly
installments of $4,848.23 (Four Thousand Eight Hundred Forty-eight and 23/100
Dollars), subject to adjustment (Section 7(a))

         (iii) Landlord and Tenant agree Tenant shall pay the first month's
minimum rent and the first month's operating expenses by August 1, 2006.
         /s/ JM
------   -------

     (e) "PROPORTIONATE SHARE" (Section 7(a)): 39.58% (Ratio of approximate
rentable square feet in the Premises to approximate rentable square feet in the
Building)

     (f) "USE" (Section 4): Research and development, component assembly,
equipment testing, general office and warehouse purposes (excluding any "place
of public accommodation"). Landlord disclaims any representation or warranty as
to whether such uses comply with the Laws and Requirements, compliance with
which shall be the responsibility of Tenant.

     (g) "SECURITY DEPOSIT" (Section 28): $15,000.00 (Fifteen Thousand and
00/100 Dollars)

     (h) CONTENTS: This lease consists of the Index, pages 1 through 11
               containing Sections 1 through 28 and the following, all of which
               are attached hereto and made part of this lease:

               Rider with Sections 29 through 40

     Exhibits: "A" - Plan showing Premises            "D" - Cleaning Schedule
               "B" - Commencement Certificate Form    "E" - Estoppel Certificate
               "C" - Building Rules                         Form

                                       1
<PAGE>
2.  PREMISES. Landlord hereby leases to Tenant and Tenant hereby leases from
Landlord the Premises as shown on attached Exhibit "A" within the Building (the
Building and the lot on which it is located, the "PROPERTY"), together with the
non-exclusive right with Landlord and other occupants of the Building to use
all areas and facilities provided by the Landlord for the use of all tenants in
the Property including any lobbies, hallways, driveways, sidewalk parking,
loading and landscaped areas (the "COMMON AREAS").

3.  ACCEPTANCE OF PREMISES. Tenant has examined and knows the condition of the
Property, the zoning, signs, sidewalks, parking areas, curbs and access ways
adjoining it, visible easements, any surface conditions and the prior uses, and
Tenant accepts them in the condition in which they now are, without relying on
any representation, covering warranty by Landlord. Tenant and its agents shall
have the right, at Tenant's own risk, expense and responsibility, reasonable
times prior to the Commencement Date, to enter the Premises for the purpose of
taking measurement installing its furnishings and equipment; provided that the
Premises are vacant and Tenant obtains Landlord's written consent.

4.  USE; COMPLIANCE.

     (a) PERMITTED USE. Tenant shall occupy and use the Premises for and only
for the Use specified in Section [ILLEGIBLE] above and in such a manner as is
lawful, reputable and will not create any nuisance or otherwise interfere with
any tenant's normal operations or the management of the Building. Without
limiting the foregoing, such Use shall execute any use that would cause the
Premises or the Property to be deemed a "place of public accommodation" under
the Americans with Disabilities Act (the "ADA") as further described in the
Building Rules (defined below). All Common Areas shall be subject to Landlord's
exclusive control and management at all times. Tenant shall not use or permit
use of any portion of the Common Areas for other than their intended use.

     (b) COMPLIANCE. From and after the Commencement Date, Tenant shall comply
promptly, at its sole expenses (including making any alterations or
improvements) with all laws (including the ADA), ordinances, notices, or rules,
regulations and requirements regulating the Property during the Term which
impose any duty upon Landlord Tenant with respect to Tenant's use, occupancy or
alteration of, or Tenant's installations in or upon, the Property including the
Premises, (as the same may be amended, the "LAWS AND REQUIREMENTS") and the
building is attached as Exhibit "C", as amended by Landlord from time to time,
(the "BUILDING RULES"). Provided, however, that Tenant shall not be required to
comply with the Laws and Requirements with respect to the footings, foundation,
structural steel columns and girders forming a part of the Property unless the
need for such compliance arises out of Tenant's use, occupancy or alteration of
the Property, or by any act or omission of Tenant or any employees, aged
contractors, licensees or invitees ("AGENTS") of Tenant. With respect to
Tenant's obligations as to the Property, other than the Premises, at Landlord's
opinion and at Tenant's expense, Landlord may comply with any repair,
replacement or other construction requirements of the Laws and Requirements and
Tenant shall pay to Landlord all costs thereof additional rent.

     (c)  ENVIRONMENTAL. Tenant shall comply, at its sole expense, with all
Laws and Requirements as set forth above, all manufacturers' instructions and
all requirements of insurers relating to the treatment, production, store
handling, transfer, processing, transporting, use, disposal and release of
hazardous substances, hazardous mixtures, chemicals, pollutants, petroleum
products, toxic or radioactive matter (the "RESTRICTED ACTIVITIES"). Tenant
shall deliver to Landlord copies of all Material Safety Data Sheets or other
written information prepared by manufacturers, importers or suppliers of any
chemical and all notices, filings, permits and any other written communications
from or to Tenant and any entity regulating any Restricted Activities.

     (d) NOTICE. If any time during or after the Term, Tenant becomes aware of
any inquiry, investigation proceeding regarding the Restricted Activities or
becomes aware of any claims, actions or investigations regarding ADA, Tenant
shall give Landlord written notice, within 5 days after first learning thereof,
providing all available information and copies of any notices.

5.  TERM. The Term of this lease shall commence on the Commencement Date and
shall end at 11:59 p.m. on the day of the Term (the "EXPIRATION DATE"), without
the necessity for notice from either party, unless sooner terminated in
accordance with the terms hereof. At Landlord's request, Tenant shall confirm
the Commencement Date and Expiration Date by executing a lease commencement
certificate in the form attached as Exhibit "B".

6.  MINIMUM ANNUAL RENT.  Tenant agrees to pay to Landlord the Minimum Annual
Rent in equal monthly installments in the amount set forth in Section 1(d) (as
increased at the beginning of each lease year as set forth in Section 1(d)), in
advance, on the first day of each calendar month during the Term, without
notice, demand or setoff Landlord's address designated at the beginning of this
lease unless Landlord designates otherwise; provided that rent

                                       2
<PAGE>
          (ii) If it shall not be lawful for Tenant to reimburse Landlord for
any of the impositions, the Minimum Annual Rent shall be increased by the amount
of the portion of such imposition allocable to Tenant, unless prohibited by law.

     (c)  INSURANCE.

          (i)  PROPERTY. Landlord shall keep in effect insurance against loss or
damage to the Building of Property by fire and such other casualties as may be
included within fire, extended coverage and special form insurance covering the
full replacement cost of the Building (but excluding coverage of Tenant's
personal property in, any event of alterations by Tenant to, the Premises), and
such other insurance as Landlord may reasonably deem appropriate may be required
from time-to-time by any mortgage.

          (ii) LIABILITY. Tenant, at its own expense, shall keep in effect
comprehensive general public liability insurance with respect to the Premises
and the Property, including contractual liability insurance, with such limits
for liability for bodily injury (including death) and property damage as
reasonably may be required by Landlord from time-to-time, but not less than a
combined single limit of $1,000,000 per occurrence and a general aggregate limit
of no more than $2,000,000 (which aggregate limit shall apply separately to each
of Tenant's locations if more than the Premises however, such limits shall not
limit the liability of Tenant hereunder. The policy of comprehensive general
primary liability insurance also shall name Landlord and Landlord's agent as
insured parties with respect to the Premises, shall be written on an
"occurrence" basis and not on a "claims made" basis, shall provide that it is
primary with respect to policies carried by Landlord and that any coverage
carried by Landlord shall be excess insurance, shall provide that it shall not
be cancelable or reduced without at least 30 days prior written notice to
Landlord and shall be issued in satisfactory to Landlord. The insurer shall be a
responsible insurance carrier which is authorized to issue such insurance and
licensed to do business in the state in which the Property is located and which
has at all times during the Tenant rating of no less than A VII in the most
current edition of Best's Insurance Reports. Tenant shall deliver to Landlord on
or before the Commencement Date, and subsequently renewals of, a certificate of
insurance evidencing such coverage and the waiver of subrogation described
below.

          (iii) WAIVER OF SUBROGATION.  Landlord and Tenant shall have included
in their respective property insurance policies waivers of their respective
insurers' right of subrogation against the other party. If such a waiver should
be unobtainable or unenforceable, then such policies of insurance shall state
expressly that such policies shall be invalidated if, before a casualty, the
insured waives the right of recovery against any party responsible for a
casualty covered by the policy.

          (iv) INCREASE OF PREMIUMS. Tenant agrees not to do anything or fail to
do anything which will increase cost of Landlord's insurance or which will
prevent Landlord from procuring policies (including public liability) companies
and in a form satisfactory to Landlord. If any breach of the preceding sentence
by Tenant causes the rate of fire or other insurance to be increased, Tenant
shall pay the amount of such increase as additional rent promptly by being
billed.

     (d)  REPAIRS AND MAINTENANCE; COMMON AREAS; BUILDING MANAGEMENT.

          (i) Tenant at its sole expense shall maintain the Premises in a neat
and orderly condition.

          (ii) Landlord, shall make all necessary repairs to the Premises, the
Common Areas and any other improvements located on the Property, provided that
Landlord shall have no responsibility to make any repairs. Landlord receives
written notice of the need  for such repair. Landlord shall operate and manage
the Property and shall maintain all Common Areas and any paved areas appurtenant
to the Property in a clean and orderly condition Landlord reserves the right to
make alterations to the Common Areas form time to time.

          (iii) Notwithstanding anything herein to the contrary, repairs and
replacements to the Property including Premises made necessary by Tenant's use,
occupancy or alteration of, or Tenant's installation in or upon the Property by
any act or omission of Tenant or its Agents shall be made at the sole expense
of Tenant to the extent not covered by any applicable insurance proceeds paid
to Landlord. Tenant shall not bear the expense of any repairs or replacement to
the Property arising out of or caused by any other Tenant's use, occupancy or
alteration of, or any other Tenant's installation in or upon, the Property or
by any act or omission of any other Tenant or any other Tenant's Agents.

     (e)  UTILITIES.

                                       4
<PAGE>

        (i)  Landlord will furnish the Premises with electricity, heating and
air conditioning for the normal [ILLEGIBLE] occupancy of the Premises as general
offices between 8:00 a.m. and 6:00 p.m., Monday through Friday (legal
[ILLEGIBLE] excepted). If Tenant shall require electricity or install electrical
equipment including but not limited to [ILLEGIBLE] heating, refrigeration
equipment, electronic data processing machines, or machines or equipment using
current in [ILLEGIBLE] of 110 volts, which will in any way increase the amount
of electricity usually furnished for use as general office [ILLEGIBLE] if Tenant
shall attempt to use the Premises in such a manner that the services to be
furnished by Landlord [ILLEGIBLE] required during periods other than or in
addition to business hours referred to above, Tenant will obtain Landlord's
written approval and will pay for the resulting additional direct expense,
including the expense resulting [ILLEGIBLE] installation of such equipment and
meters, as additional rent promptly upon being billed. Landlord shall
[ILLEGIBLE] responsible or liable for any interruption in utility service, nor
shall such interruption affect the continuation or [ILLEGIBLE] of this lease.

        (ii) If at any time utility services supplied to the Premises are
separately metered, the cost of [ILLEGIBLE] Tenant's meter and the cost of such
separately metered utility service shall be paid by Tenant promptly upon
[ILLEGIBLE] billed.

     (f) JANITORIAL SERVICES. Landlord will provide Tenant with trash removal
and janitorial services pursuant [ILLEGIBLE] cleaning schedule attached as
Exhibit "D".

     (g) "RENT." The term "RENT" as used in this lease means the Minimum Annual
Rent, Annual [ILLEGIBLE] Expenses and any other additional rent or sums payable
by Tenant to Landlord pursuant to this lease, all of which [ILLEGIBLE] be deemed
rent for purposes of Landlord's rights and remedies with respect thereto. Tenant
shall pay all [ILLEGIBLE] Landlord within 30 days after Tenant is billed, unless
otherwise provided in this lease, and interest shall accrue [ILLEGIBLE] sums due
but unpaid.

8.   SIGNS. Landlord, at Landlord's expense, will place Tenant's name and suite
number on the Building [ILLEGIBLE] and on or beside the entrance door to the
Premises. Except for signs which are located wholly within the interior
[ILLEGIBLE] Premises and not visible from the exterior of the Premises, no signs
shall be placed on the Property without the [ILLEGIBLE] written consent of
Landlord. All signs installed by Tenant shall be maintained by Tenant in good
condition and [ILLEGIBLE] shall remove all such signs at the termination of this
lease and shall repair any damage caused by such [ILLEGIBLE] existence or
removal.

9.   ALTERATIONS AND FIXTURES

     (a) Subject to Section l0, Tenant shall have the right to install its trade
fixtures in the Premise, provided [ILLEGIBLE] such installation or removal
thereof shall affect any structural portion of the Property nor any utility
[ILLEGIBLE] communications lines, equipment or facilities in the Building
serving any tenant other than Tenant. At the expiration [ILLEGIBLE] termination
of this lease and at the option of Landlord or Tenant, Tenant shall remove such
installation(s) and, [ILLEGIBLE] event of such removal, Tenant shall repair any
damage caused by such installation or removal; if Tenant, with [ILLEGIBLE]
written consent, elects not to remove such installation(s) at the expiration or
termination of this lease, all [ILLEGIBLE] installations shall remain on the
Property and become the property of Landlord without payment by Landlord.

     (b) Except for non-structural changes which do not exceed $5000 in the
aggregate, Tenant shall not [ILLEGIBLE] permit to be made any alterations to the
Premises without Landlord's prior written consent. Tenant shall pay the
[ILLEGIBLE] any required architectural/engineering reviews. In making any
alterations, (i) Tenant shall deliver to Landlord the [ILLEGIBLE] specifications
and necessary permits, together with certificates evidencing that Tenant's
contractors and [ILLEGIBLE] have adequate insurance coverage naming Landlord and
Landlord's agent as additional insureds, at least 10 days [ILLEGIBLE]
commencement thereof, (ii) such alterations shall not impair the structural
strength of the Building or any [ILLEGIBLE] improvements or reduce the value of
the Property or affect any utility lines, communications lines, [ILLEGIBLE]
facilities in the Building serving any tenant other than Tenant, (iii) Tenant
shall comply with Section 10 and (iv) occupants of the Building and of any
adjoining property shall not be disturbed thereby. All alterations to the
Premises [ILLEGIBLE] Tenant shall be the property of Tenant until the expiration
or termination of this lease; at that time all such [ILLEGIBLE] shall remain on
the Property and become the property of Landlord without payment by Landlord
unless Landlord [ILLEGIBLE] written notice to Tenant to remove the same, in
which event Tenant will remove such alterations and repair any result
[ILLEGIBLE] damage. At Tenant's request prior to Tenant making any alterations,
Landlord shall notify Tenant in writing, [ILLEGIBLE] Tenant is required to
remove such alterations at the expiration or termination of this lease.

10.   MECHANICS' LIENS. Tenant shall pay promptly any contractors and
materialmen who supply labor, work [ILLEGIBLE] materials to Tenant at the
Property and shall take all steps permitted by law in order to avoid the
imposition of [ILLEGIBLE] mechanic's lien upon all or any portion of the
Property, Should any such lien or notice of lien be fled [ILLEGIBLE]

                                       5
<PAGE>
performed for Tenant other than by Landlord, Tenant shall bond against or
discharge the same within 5 days * Tenant has notice that the lien or claim is
filed regardless of the validity of such lien or claim. Nothing in this lease
is intended to authorize Tenant to do or cause any work to be done or materials
to be supplied for the account of Landlord * all of the same to be solely for
Tenant's account and at Tenant's risk and expense. Throughout this lease the *
"MECHANIC'S LIEN" is used to include any lien, encumbrance or charge levied or
imposed upon all or any portion * interest in or income from the Property on
account of any mechanic's, laborer's, materialman's or construction * arising
out of any debt or liability to or any claim of any contractor, mechanic,
supplier, materialman or laborer and * include any mechanic's notice of
intention to file a lien give to Landlord or Tenant, any stop order given to
Landlord or Tenant, any notice of refusal to pay naming Landlord or Tenant and
any injunctive or equitable action brought by * person claiming to be entitled
to any mechanic's lien.

11. LANDLORD'S RIGHT TO RELOCATE TENANT; RIGHT OF ENTRY.

    (a) Landlord may cause Tenant to relocate from the Premises to a comparable
space ("RELOCATION SPACE") within the Building by giving written notice to
Tenant at least 60 days in advance, provided that Landlord shall pay for all
reasonable costs of such relocation. Such a relocation shall not terminate,
modify or otherwise * this lease except that "Premises" shall refer to the
Relocation Space rather than the old location identified in * 1(a).

    (b) Tenant shall permit Landlord and its Agents to enter the Premises at
all reasonable times following reasonable notice (except in the event of an
emergency), for the purpose of inspection, maintenance or making repairs,
alterations or additions as well as to exhibit the Premises for the purpose of
sale or mortgage and, during the last * months of the Term, to exhibit the
Premises to any prospective tenant. Landlord will make reasonable efforts not
to inconvenience Tenant in exercising the forgoing rights, but shall not be
liable for any loss of occupation or * enjoyment thereby occasioned.

12. DAMAGE BY FIRE OR OTHER CASUALTY.

    (a) If the Premises or Building shall be damaged or destroyed by fire or
other casualty, Tenant promptly shall notify Landlord and Landlord, subject to
the conditions set forth in this Section 12, shall repair such damage and
restore the Premises to substantially the same condition in which they were
immediately prior to such damage or destruction, but not including the repair,
restoration or replacements of the fixtures or alterations installed by Tenant.
Landlord shall notify Tenant in writing, within 30 days after the date of the
casualty, if Landlord anticipates that the restoration will * more than 180
days from the date of the casualty to complete; in such event, either Landlord
or Tenant may terminate this lease effective as of the date the casualty by
giving written notice to the other within 10 days after the Landlord's notice.
Further, if a casualty occurs during the last 12 months of the Term or any
extension thereof, Landlord may cancel the lease unless Tenant has the right to
extend the Term for at least 3 more years and does so within 30 days after the
date of the casualty.

    (b) Landlord shall maintain a 12 month rental coverage endorsement or other
comparable form of coverage * part of its fire, extended coverage and special
form insurance. Tenant shall receive an abatement of its Minimum * Rent and
Annual Operating Expenses to the extent the Premises are rendered untenantable
as determined by the * providing the rental coverage endorsement.

13. CONDEMNATION.

    (a) TERMINATION. If (i) all of the Premises are taken by a condemnation or
otherwise for any public or * public use, (ii) any part of the Premises is
so taken and the remainder thereof is insufficient for the reasonable operation
of Tenant's business or (iii) any of the Property is so taken, and, in
Landlord's opinion, it would be impractical * condemnation proceeds are
insufficient to restore the remainder of the Property, then this lease shall
terminate and * unaccrued obligations hereunder shall cease as of the day before
 possession is taken by the condemnor.

    (b) PARTIAL TAKING. If there is a condemnation and this lease has not been
terminated pursuant to this Section * Landlord shall restore the Building and
the improvements which are part of the Premises to a condition and size * nearly
comparable as reasonably possible to the condition and size thereof immediately
prior to the date upon which * condemnor took possession and (ii) the
obligations of Landlord and Tenant shall be unaffected by such condemnation *
except that there shall be an equitable abatement of the Minimum Annual Rent
according to the rental value of the Premises before and after the date upon
which the condemnor took possession and/or the date Landlord completes *
restoration.

                                       6
<PAGE>
     (C)  AWARD. In the event of a condemnation affecting Tenant, Tenant shall
have the right to make a claim against the condemnor for moving expenses and
business dislocation damages to the extent that such claim does not reduce sums
otherwise payable by the condemnor to Landlord. Except as aforesaid and except
as set forth in (d) below, [ILLEGIBLE] hereby assigns all claims against the
condemnor to Landlord.

     (D)  TEMPORARY TAKING. No temporary taking of the Premises shall terminate
this lease or give Tenant any [ILLEGIBLE] to any rental abatement. Such a
temporary taking will be treated as if Tenant had sublet the Premises to the
condemnor and had assigned the proceeds of the subletting to Landlord to be
applied on account of Tenant's obligations hereunder. Any award for such a
temporary taking during the Term shall be applied first, to Landlord's costs of
collection [ILLEGIBLE] second, on account of sums owing by Tenant hereunder, and
if such amounts applied on account of sums owing [ILLEGIBLE] Tenant hereunder
should exceed the entire amount owing by Tenant for the remainder of the Term,
the excess [ILLEGIBLE] paid to Tenant.

14.  NON-ABATEMENT OF RENT. Except as otherwise expressly provided as to damage
by fire or other [ILLEGIBLE] Section 12(b) and as to condemnation in Section
13(b), there shall be no abatement or reduction of the Rent [ILLEGIBLE] cause
whatsoever, and this lease shall not terminate, and Tenant shall not be entitled
to surrender the Premises.

15.  INDEMNIFICATION OF LANDLORD. Subject to Sections 7(c)(iii) and 16, Tenant
will protect, indemnify and [ILLEGIBLE] harmless Landlord and its Agents from
and against any and all claims, actions, damages, liability and expense
(including fees of attorneys, investigators and experts) in connection with loss
of life, personal injury or damage to property [ILLEGIBLE] about the Premises or
arising out of the occupancy or use of the Premises by Tenant or its Agents or
occasioned [ILLEGIBLE] or in part by any act or omission of Tenant or its
Agents, whether prior to, during or after the Term, except to the [ILLEGIBLE]
such loss, injury or damage was caused by the negligence of Landlord or its
Agents. In case any action or proceeding brought against Landlord and/or its
Agents by reason of the foregoing, Tenant, at its expense, shall resist and
defend such action or proceeding, or cause the same to be resisted and defended
by counsel (reasonably acceptable to Landlord and its Agents) designated by the
insurer whose policy covers such occurrence or by counsel designated by Tenant
[ILLEGIBLE] approved by Landlord and its Agents. Tenant's obligations pursuant
to this Section 15 shall survive the expiration [ILLEGIBLE] termination of this
lease.

16.  WAIVER OF CLAIMS. Landlord and Tenant each hereby waives all claims for
recovery against the other for any [ILLEGIBLE] or damage which may be inflicted
upon the property of such party even if such loss or damage shall be brought
about [ILLEGIBLE] the fault or negligence of the other party or its Agents;
provided, however, that such waiver by Landlord shall [ILLEGIBLE] effective with
respect to any liability of Tenant described in Sections 4(c) and 7(d)(iii).

17.  QUIET ENJOYMENT: Landlord covenants that Tenant, upon performing all of its
covenants, agreements [ILLEGIBLE] conditions of this lease, shall have quiet and
peaceful possession of the Premises as against anyone claiming [ILLEGIBLE]
through Landlord, subject, however, to the exceptions, reservations and
conditions of this lease.

18.  ASSIGNMENT AND SUBLETTING.

     (A)  LIMITATION. Tenant shall not transfer this lease, voluntarily or by
operation of law, without the prior written consent of Landlord which shall not
be withheld unreasonably. However, Landlord's consent shall not be required in
the event of any transfer by Tenant to an affiliate of Tenant which is at least
as creditworthy as Tenant as of the date of [ILLEGIBLE] lease and provided
Tenant delivers to Landlord the instrument described in Section (c)(iii) below,
together with [ILLEGIBLE] certification of such creditworthiness by Tenant and
such affiliate. Any transfer not in conformity with this Section [ILLEGIBLE]
shall be void at the option of Landlord, and Landlord may exercise any or all of
its rights under Section 23. A consent [ILLEGIBLE] one transfer shall not be
deemed to be a consent to any subsequent transfer. "Transfer" shall include any
[ILLEGIBLE] assignment, license or concession agreement, change in ownership or
control of Tenant, mortgage or hypothecation [ILLEGIBLE] this lease or Tenant's
interest therein or in all or a portion of the Premises.

     (B)  OFFER TO LANDLORD. Tenant acknowledges that the terms of this lease,
including the Minimum Annual [ILLEGIBLE] have been based on the understanding
that Tenant physically shall occupy the Premises for the entire Term. Therefore
upon Tenant's request to transfer all or a portion of the Premises, at the
option of Landlord. Tenant and Landlord shall execute an amendment to this lease
removing such space from the Premises, Tenant shall be relieved of any liability
with respect to such space and Landlord shall have the right to lease such space
to any party, including Tenant's [ILLEGIBLE] transferee.

     (C)  CONDITIONS. Notwithstanding the above, the following shall apply to
any transfer, with or with Landlord's consent:

                                       7
<PAGE>

          (i)    As of the date of any transfer, Tenant shall not be in default
under this lease nor shall any omission have occurred which would constitute a
default with the giving of notice and/or the passage of time.

          (ii)   No transfer shall relieve Tenant of its obligation to pay the
Rent and to perform all its other obligations hereunder. The acceptance of Rent
by Landlord from any person shall not be deemed to be a waiver by Landlord of
provision of this lease or to be a consent to any transfer.

          (iii)  Each transfer shall be by a written instrument in form and
substance satisfactory to Landlord and shall (A) include an assumption of
liability by any transferee of all Tenant's obligations and the transferee's
ratification and agreement to be bound by all the provisions of this lease, (B)
afford Landlord the right of direct action against transferee pursuant to the
same remedies as are available to Landlord against Tenant and (C) be executed by
Tenant the transferee.

          (iv)   Tenant shall pay, within 10 days of receipt of an invoice which
shall be no less than $250, Landlord reasonable attorneys' fees and costs in
connection with the review, processing and documentation of any transfer which
Landlord's consent is required.

19.  SUBORDINATION: MORTGAGEE'S RIGHTS

     (a)    This lease shall be subordinate to any first mortgage or other
primary encumbrance now or hereafter affect the Premises. Although the
subordination is self-operative, within 10 days after written request, Tenant
shall execute deliver any further instruments confirming such subordination of
this lease and any further instruments of attornment may be desired by any such
mortgagee or Landlord. However, any mortgagee may at any time subordinate its
mortgage to this lease, without Tenant's consent, by giving written notice to
Tenant and thereupon this lease shall be deemed [ILLEGIBLE] to such mortgage
without regard to their respective dates of execution and delivery; provided,
however, that the subordination shall not affect any mortgagee's right to
condemnation awards, casualty insurance proceeds, intervene liens or any right
which shall arise between the recording of such mortgage and the execution of
this lease.

     (b)    It is understood and agreed that any mortgagee shall not be liable
to Tenant for any funds paid by Tenant to Landlord unless such funds actually
have been transferred to such mortgage by Landlord.

     (c)    Notwithstanding the provisions of Sections 12 and 13 above,
Landlord's obligation to restore the Premises after a casualty or condemnation
shall be subject to the consent and prior rights of Landlord's first mortgagee.

20.  RECORDING; TENANT'S CERTIFICATE. Tenant shall not record this lease or a
memorandum thereof without Landlord's prior written consent. Within 10 days
after Landlord's written request from time to time:

     (a)    Tenant shall execute, acknowledge and deliver to Landlord a written
statement certifying the Commencement Date and Expiration Date of this lease,
that this lease is in full force and effect and has not been modified and other
[ILLEGIBLE] as set forth in the form of estoppel certificate attached as Exhibit
"E" or with such modifications as may be necessary reflect accurately the stated
facts [ILLEGIBLE] and/or such other certifications as may be requested by a
mortgagee or purchaser. Tenant understands that its failure to execute such
documents may cause Landlord serious financial damage by causing the failure of
a financing or sale transaction.

     (b)    Tenant shall furnish to Landlord, Landlord's mortgagee, prospective
mortgagee or purchaser reasonable requested financial information.

21.  SURRENDER; ABANDONED PROPERTY.

     (a)    Subject to the terms of Sections 9(b), 12(a) and 13(b), at the
expiration or termination of this lease, Tenant promptly shall yield up in the
same condition, order and repair in which they are required to be kept
throughout Term, the Premises and all improvements thereto, and all fixtures and
equipment servicing the Building, ordinary wear and tear excepted.

     (b)    Upon or prior to the expiration or termination of this lease, Tenant
shall remove any personal property from the Property. Any personal property
remaining thereafter shall be deemed conclusively to have been abandoned,
[ILLEGIBLE] Landlord, at Tenant's expense, may remove, store, sell or otherwise
dispose of such property in such manner as Landlord may see fit and/or Landlord
may retain such property as its property. If any part thereof shall be sold,
then Landlord may receive and retain the proceeds of such sale and apply the
same, at its option, against the expenses of the sale, cost of moving and
storage and any Rent due under this lease.

                                       8
<PAGE>
     (c)   If Tenant, or any person claiming through Tenant, shall continue to
occupy the Premises after the [ILLEGIBLE] or termination of this lease or any
renewal thereof, such occupancy shall be deemed to be under a [ILLEGIBLE]
tenancy under the same terms and conditions set forth in this lease, except that
the monthly installment of the [ILLEGIBLE] Annual Rent during such continued
occupancy shall be double the amount applicable to the last month of the
[ILLEGIBLE] Anything to the contrary notwithstanding, any holding over by Tenant
without Landlord's prior written consent constitute a default hereunder and
shall be subject to all the remedies available to Landlord.

22.  CURING TENANT'S DEFAULTS. If Tenant shall be in default in the performance
of any of its obligations [ILLEGIBLE] Landlord, without any obligation to do so,
in addition to any other rights it may have in law or equity, may elect
[ILLEGIBLE] such default on behalf of Tenant after written notice (except in the
case of emergency) to Tenant. [ILLEGIBLE] reimburse Landlord upon demand for any
sums paid or costs incurred by Landlord in curing such default, [ILLEGIBLE]
interest thereon from the respective dates of Landlord's incurring such costs,
which sums and costs together with [ILLEGIBLE] shall be deemed additional rent.

23.  DEFAULTS - REMEDIES.

     (A)   DEFAULTS. It shall be an event of default:

           (i)   If Tenant does not pay in full when due any and all Rent;

           (ii)  If Tenant fails to observe and perform or otherwise breaches
any other provision of this lease;

           (iii) If Tenant abandons the Premises, which shall be conclusively
presumed if the Premises [ILLEGIBLE] unoccupied for more than 10 consecutive
days, or removes or attempts to remove Tenant's goods or property [ILLEGIBLE] in
the ordinary course of business; or

           (iv)  If Tenant becomes insolvent or bankrupt in any sense or makes a
general assignment for the [ILLEGIBLE] creditors or offers a settlement to
creditors, or if a petition in bankruptcy or for reorganization or for an
arrangement creditors under any federal or state law is filed by or against
Tenant, or a bill in equity or other proceeding [ILLEGIBLE] appointment of a
receiver for any of Tenant's assets is commenced, or if any of the real or
persona] property of [ILLEGIBLE] shall be levied upon; provided, however, that
any proceeding brought by anyone other than Landlord or Tenant [ILLEGIBLE] any
bankruptcy, insolvency, receivership or similar law shall not constitute a
default until such proceeding has [ILLEGIBLE] unstayed for more than 60
consecutive days.

     (B)   REMEDIES. Then, and in any such event, Landlord shall have the
following rights:

           (i)   To charge a late payment fee equal to the greater of $100 or 5%
of any amount owed to [ILLEGIBLE] pursuant to this lease which is not paid
within 5 days after the due date.

           (ii)   To enter and repossess the Premises, by breaking open locked
doors if necessary, and remove persons and all or any property therefrom, by
action at law or otherwise, without being liable for prosecution or [ILLEGIBLE]
therefor, and Landlord may, at Landlord's option, make alterations and repairs
in order to relet the Premises and [ILLEGIBLE] or any part(s) of the Premises
for Tenant's account. Tenant agrees to pay to Landlord on demand any deficiency
may arise by reason of such reletting. In the event of reletting without
termination of this lease, Landlord may [ILLEGIBLE] time thereafter elect to
terminate this lease for such previous breach.

           (iii)  To accelerate the whole or any part of the Rent for the
balance of the Term, and declare the same immediately due and payable.

           (iv)   To terminate this lease and the Term without any right on the
part of Tenant to save the [ILLEGIBLE] payment of any sum due or by other
performance of any condition, term or covenant broken.

     (C)   GRACE PERIOD. Notwithstanding anything hereinabove stated, neither
party will exercise any available [ILLEGIBLE] because of any default of the
other, except those remedies contained in subsection (b)(i) of this Section,
unless party shall have first given 10 days written notice thereof to the
defaulting party, and the defaulting party shall failed to cure the default
within such period; provided, however, that;

                                       9
<PAGE>
          (i)       No such notice shall be required if Tenant fails to comply
     with the provisions of Sections 10 or [ILLEGIBLE] the case of emergency as
     set forth in Section 22 or in the event of any default enumerated in
     subsections (a)(iii) [ILLEGIBLE] of this Section.

          (ii)      Landlord shall not be required to give such 10 days notice
     more than 2 times during any 12 [ILLEGIBLE] period.

          (iii)     If the default consists of something other than the failure
     to pay money which cannot reasonably cured within 10 days, neither party
     will exercise any right if the defaulting party begins to cure the default
     within [ILLEGIBLE] days and continues actively and diligently in good faith
     to completely cure said default.

          (iv)      Tenant agrees that any notice given by Landlord pursuant to
     this Section which is served in compliance with Section 27 shall be
     adequate notice for the purpose of Landlord's exercise of any available
     remedies.

     (d)  NON-WAIVER; NON-EXCLUSIVE. No waiver by Landlord of any breach by
Tenant shall be a waiver [ILLEGIBLE] subsequent breach, nor shall any
forbearance by Landlord to seek a remedy for any breach by Tenant be a
[ILLEGIBLE] Landlord of any rights and remedies with respect to such or any
subsequent breach. Efforts by Landlord to [ILLEGIBLE] damages caused by Tenant's
default shall not constitute a waiver of Landlord's right to recover damages
hereunder [ILLEGIBLE] right or remedy herein conferred upon or reserved to
Landlord is intended to be exclusive of any other right or [ILLEGIBLE] provided
herein or by law, but each shall be cumulative and in addition to every other
right or remedy given [ILLEGIBLE] now or hereafter existing at law or in equity.
No payment by Tenant or receipt or acceptance by Landlord of a [ILLEGIBLE]
amount than the total amount due Landlord under this lease shall be deemed to be
other than on account, nor shall [ILLEGIBLE] endorsement or statement on any
check or payment be deemed an accord and satisfaction, and Landlord may
[ILLEGIBLE] such check or payment without prejudice to Landlord's right to
recover the balance of Rent due, or Landlord's [ILLEGIBLE] pursue any other
available remedy.

     (e)  COSTS AND ATTORNEYS' FEES. If either party commences an action
against the other party arising out of connection with this lease, the
prevailing party shall be entitled to have and recover from the losing party
attorneys' costs of suit, investigation expenses and discovery costs, including
costs of appeal.

24.  REPRESENTATIONS OF TENANT. Tenant represents to Landlord and agrees that:

     (a)  The word "TENANT" as used herein includes the Tenant named above as
well as its successors and [ILLEGIBLE] each of which shall be under the same
obligations and liabilities and each of which shall have the same rights,
privileges and powers as it would have possessed had it originally signed this
lease as Tenant. Each and every of the [ILLEGIBLE] named above as Tenant shall
be bound jointly and severally by the terms, covenants and agreements contained
[ILLEGIBLE] However, no such rights, privileges or powers shall inure to the
benefit of any assignee of Tenant immediate or [ILLEGIBLE] unless Tenant has
complied with the terms of Section 18 and the assignment to such assignee is
permitted or has approved in writing by Landlord. Any notice required or
permitted by the terms of this lease may be given by or [ILLEGIBLE] one of the
persons named above as Tenant, and shall have the same force and effect as if
given by or to all thereof.

     (b)  If Tenant is a corporation, partnership or any other form of business
association or entity, Tenant is formed and in good standing, and has full
corporate or partnership power and authority, as the case may be, to enter this
lease and has taken all corporate or partnership action, as the case may be,
necessary to carry out the [ILLEGIBLE] contemplated herein, so that when
executed, this lease constitutes a valid and binding obligation [ILLEGIBLE]
accordance with its terms. Tenant shall provide Landlord with corporate
resolutions or other proof in a form [ILLEGIBLE] to Landlord, authorizing the
execution of this lease at the time of such execution.

25.  LIABILITY OF LANDLORD. The word "LANDLORD" as used herein includes the
Landlord named above as [ILLEGIBLE] its successors and assigns, each of which
shall have the same rights, remedies, powers, authorities and privileges
[ILLEGIBLE] would have had it originally signed this lease as Landlord. Any such
person or entity, whether or not named herein, [ILLEGIBLE] have no liability
hereunder after it ceases to hold title to the Premises except for obligations
already accrued (and, [ILLEGIBLE] any unapplied portion of Tenant's Security
Deposit, Landlord shall be relieved of all liability therefor upon [ILLEGIBLE]
such portion to its successor in interest) and Tenant shall look solely to
Landlord's successor in interest for performance of the covenants and
obligations of the Landlord hereunder which thereafter shall accrue. Neither
Landlord nor any principal of Landlord nor any owner of the Property, whether
disclosed or undisclosed, shall have any [ILLEGIBLE] liability with respect to
any of the provisions of this lease or the Premises, and if Landlord is in
breach or default [ILLEGIBLE] respect to Landlord's obligations under this lease
or otherwise, Tenant shall look solely to the equity of Landlord [ILLEGIBLE]
Property for the satisfaction of Tenant's claims. Notwithstanding the foregoing,
no mortgage or ground [ILLEGIBLE] succeeding to the interest of Landlord
hereunder (either in terms of ownership or possessory rights) shall be (a)
liable

                                       10
<PAGE>
     any previous act or omission of a prior landlord. (b) subject to any rental
offsets or defenses against a prior landlord, (c) bound by any amendment of this
lease made without its written consent, or by payment by Tenant of [ILLEGIBLE]
Annual Rent in advance in excess of one monthly installment.

26.  INTERPRETATION; DEFINITIONS.

     (a) CAPTIONS. The captions in this lease are for convenience only and are
not a part of this lease and do [ILLEGIBLE] any way define, limit, describe or
amplify the terms and provisions of this lease or the scope or intent thereof.

     (b) ENTIRE AGREEMENT. This lease represents the entire agreement between
the parties hereto and there [ILLEGIBLE] collateral or oral agreements or
understandings between Landlord and Tenant with respect to the Premises
[ILLEGIBLE] Property. No rights, casements or licenses are acquired in the
Property or any land adjacent to the Property by [ILLEGIBLE] by implication or
otherwise except as expressly set forth in the provisions of this lease. This
lease shall not be [ILLEGIBLE] in any manner except by an instrument in writing
executed by the parties. The masculine (or neuter) pronoun [ILLEGIBLE] singular
number shall include the masculine, feminine and neuter genders and the singular
and plural number. The [ILLEGIBLE] "INCLUDING" followed by any specific item(s)
is deemed to refer to examples rather than to be words of limitation.
[ILLEGIBLE] parties having participated fully and equally in the negotiation and
preparation of this lease, this lease shall not be [ILLEGIBLE] strictly
construed, nor any ambiguities in this lease resolved, against either Landlord
or Tenant.

     (c) COVENANTS. Each covenant, agreement, obligation, term, condition or
other provision herein contained [ILLEGIBLE] be deemed and construed as a
separate and independent covenant of the party bound by, undertaking or making
[ILLEGIBLE] same, not dependent on any other provision of this lease unless
otherwise expressly provided. All of the terms [ILLEGIBLE] conditions set forth
in this lease shall apply throughout the Term unless otherwise expressly set
forth herein.

     (d)  INTEREST. Wherever interest is required to be paid hereunder, such
interest shall be at the highest [ILLEGIBLE] permitted under law but not in
excess of 15% per annum.

     (e) SEVERABILITY; GOVERNING LAW. If any provisions of this lease shall be
declared unenforceable in any [ILLEGIBLE] such unenforceability shall not affect
any other provision of this lease, and each such provision shall be deemed
[ILLEGIBLE] modified, if possible, in such a manner as to render it enforceable
and to preserve to the extent possible the intent [ILLEGIBLE] parties as set
forth herein. This lease shall be construed and enforced in accordance with the
laws of the state in [ILLEGIBLE] the Property is located.

     (f) "MORTGAGE" AND "MORTGAGEE." The word "MORTGAGE" as used herein includes
any lien or [ILLEGIBLE] on the Premises or the Property or on any part of or
interest in or appurtenance to any of the foregoing, including [ILLEGIBLE]
limitation any ground rent or ground lease if Landlord's interest is or becomes
a leasehold estate. The word "MORTGAGEE" as used herein includes the holder of
any mortgage, including any ground lessor if Landlord's interest [ILLEGIBLE]
becomes a leasehold estate. Wherever any right is given to a mortgagee, that
right may be exercised on behalf of [ILLEGIBLE] mortgagee by any representative
or servicing agent of such mortgagee.

     (g) "PERSON." The word "person" is used herein to include a natural person,
a partnership, a corporation [ILLEGIBLE] association and any other form of
business association or entity.

     27.  NOTICES. Any notice or other communication under this lease shall be
in writing and addressed to Landlord [ILLEGIBLE] Tenant at their respective
addresses specified at the beginning of this lease, except that after the
Commencement [ILLEGIBLE] Tenant's address shall be at the Premises, (or to such
other address as either may designate by notice to the other) [ILLEGIBLE] copy
to any mortgagee or other party designated by Landlord. Each notice or other
communication shall be [ILLEGIBLE] given if sent by prepaid overnight delivery
service or by certified mail, return receipt requested, postage prepaid any
other manner, with delivery in any case evidenced by a receipt, and shall be
deemed received on the day of [ILLEGIBLE] receipt by the intended recipient or
on the business day delivery is refused. The giving of notice by Landlord's
attorney representatives and agents under this Section shall be deemed to be the
acts of Landlord; however, the [ILLEGIBLE] provisions governing the date on
which a notice is deemed to have been received shall mean and refer to the date
[ILLEGIBLE] which a party to this lease, and not its counsel or other recipient
to which a copy of the notice may be sent, is deemed have received the notice.

     28.  SECURITY DEPOSIT. At the time of signing this lease, Tenant shall
deposit with Landlord the Security Deposit to [ILLEGIBLE] retained by Landlord
as cash security for the faithful performance and observance by Tenant of the
provisions of lease. Tenant shall not be entitled to any interest whatever on
the Security Deposit. Landlord shall have the right [ILLEGIBLE] commingle the
Security Deposit with its other funds. Landlord may use the whole or any part of
the Security Deposit [ILLEGIBLE] the payment of any amount as to which Tenant is
in default hereunder or to compensate Landlord for any loss or damage
[ILLEGIBLE]

                                       11
<PAGE>
it may suffer by reason of Tenant's default under this lease. If Landlord uses
all or any portion of the Security Deposit herein provided, within 10 days
after written demand therefor, Tenant shall pay Landlord cash in amount equal
to the portion of the Security Deposit used by Landlord. If Tenant shall comply
fully and faithfully with all of the provisions in this lease, the Security
Deposit shall be returned to Tenant after the Expiration Date and surrender of
the Premises to the Landlord.

     IN WITNESS WHEREOF, and in consideration of the mutual entry into this
lease and for other goods and valuable consideration, and intending to be
legally bound, Landlord and Tenant have executed this lease.

Date signed:                       LANDLORD:

5/3/05  [ILLEGIBLE]                LIBERTY PROPERTY LIMITED PARTNERSHIP
------------------------           By: Liberty Property Trust,
                                   Sole General Partner

                                   By: /s/ JAMES J. MAZZARELLI, JR.
                                   ----------------------------------
                                   Name:  James J. Mazzarelli, Jr.
                                   Title: Senior Vice President and City Manager

Date signed:                       TENANT:

------------------------           VALLEY FORGE SCIENTIFIC CORP.

Attest:

                                   By: /s/ J. MALIS
                                       -----------------------------------
------------------------           Name:  Jerry Malis
Name:                              Title: President

------------------------
Title:

                                       12
<PAGE>
                                     RIDER

29. PA ADDITIONAL REMEDIES

     (a) WARRANT OF ATTORNEY TO RECOVER POSSESSION: When this lease and the Term
or any extension thereof shall have terminated on account of any default by
Tenant, or when the Term or any extension thereof shall have expired, after
notice and failure to cure as provided in this Lease, Tenant hereby authorizes
any attorney of any court of record of the Commonwealth of Pennsylvania to
appear for tenant and for anyone claiming by, through or under Tenant and to
confess judgment against all such parties, and in [ILLEGIBLE] of Landlord, in
ejectment and for the recovery of possession of the Premises, for which this
lease or a true and correct copy shall be good and sufficient warrant. If for
any reason after such action shall have been commenced it shall be determined
that possession of the Premises remains in or be restored to Tenant, Landlord
shall have the right for the same default and upon subsequent default(s) or upon
the termination of this lease or Tenant's right of possession as herein set
forth, to again confess judgment as herein provided for which this lease or a
true and correct copy hereof shall be good and sufficient warrant.

     (b) WARRANT OF ATTORNEY FOR MONEY DAMAGES: If Tenant shall default in the
payment of the Rent due hereunder, after notice and failure to cure as provided
in this Lease, Tenant hereby authorizes any attorney of any court of record of
the Commonwealth of Pennsylvania to appear for Tenant, and to confess judgment
against Tenant, and in favor of Landlord, for all sums due hereunder for
interest, costs and an attorney's collection commission equal to the greater of
10% of all such sums or $1,000, for which this lease is true and correct copy
hereof shall be good and sufficient warrant. TENANT UNDERSTANDS THAT THE
FOREGOING PERMITS LANDLORD TO ENTER A JUDGMENT AGAINST TENANT WITHOUT PRIOR
NOTICE OR HEARING. ONCE SUCH A JUDGMENT HAS BEEN ENTERED AGAINST TENANT, ONE OR
MORE WRITS OF EXECUTION BY WRITS OF GARNISHMENT MAY BE ISSUED THEREON AFTER
NOTICE TO TENANT AS PROVIDED BY IN PURSUANT TO SUCH WRITS, LANDLORD MAY CAUSE
THE SHERIFF OF THE COUNTY IN WHICH PROPERTY OF TENANT IS LOCATED TO SEIZE
TENANT'S PROPERTY BY LEVY OR ATTACHMENT. IF SAID JUDGMENT AGAINST TENANT REMAINS
UNPAID AFTER SUCH LEVY OR ATTACHMENT, LANDLORD CAN CAUSE SUCH PROPERTY TO BE
SOLD BY THE SHERIFF EXECUTING THE WRITS, OR, IF SUCH PROPERTY CONSISTS OF A DEBT
OWED TO TENANT BY ANOTHER ENTITY, LANDLORD CAN CAUSE SUCH DEBT TO BE PAID
DIRECTLY TO LANDLORD IN AN AMOUNT UP TO BUT NOT TO EXCEED THE AMOUNT OF THE
JUDGMENT OBTAINED BY LANDLORD AGAINST TENANT, PLUS THE COSTS OF THE EXECUTION.
Such authority shall not be exhausted by one exercise thereof, but judgment may
be confessed as aforesaid from time to time as often as any of the rental and
other sums shall fall due or be in arrears, and such powers may be exercised as
well after the expiration of the initial term of this lease and during any
extended or renewal term of this lease and after the expiration of any extended
or renewal term of this lease. Notwithstanding the entry of judgment including a
percentage attorneys' commission as stated above, if Tenant tenders payment in
lieu of the principal indebtedness, interest, costs and all other amounts
included in the judgment amount (other than the percentage of attorney's
commission), plus an amount equal to the actual attorneys' fees incurred by the
Landlord in enforcing its rights under the lease. Landlord shall satisfy such
judgment.

    (c) CONTINUING RIGHTS/WAIVER OF ERRORS: The warrants to confess judgment set
forth above shall continue in full force and effect and be unaffected by
amendments to this lease or other agreements between Landlord and Tenant even if
any such amendments or other agreements increase Tenant's obligations or expand
the size of the Premises. Tenant waives any procedural error in connection with
the entry of any such judgment or in the issuance of any one or more writs of
possession or execution or garnishment thereon.

     (d) WAIVER OF NOTICE TO QUIT: PROVIDED THAT TENANT HAS RECEIVED NOTICE OF
DEFAULT AND HAS FAILED TO CURE SAME AS PERMITTED IN THIS LEASE, TENANT KNOWINGLY
AND EXPRESSLY WAIVES THE RIGHT TO RECEIVE ANY FURTHER NOTICE TO QUIT UNDER THE
PENNSYLVANIA LANDLORD TENANT AGREEMENT PRIOR TO LANDLORD COMMENCING AN ACTION
FOR REPOSSESSION OF THE PREMISES.

--------------------------------------------------------------------------------

ACKNOWLEDGED AND AGREED                 VALLEY FORGE SCIENTIFIC CORP.

                                        By: /s/ J. MALIS
                                           -------------------------------------

BY TENANT                               Its: President
                                            ------------------------------------

--------------------------------------------------------------------------------

                                      R-1
<PAGE>
30.  SPACE MEASUREMENT CONTINGENCY.

     The calculation of rent and Tenant's Proportionate Share are based on
square footages provided by Tenant's architect, jBH and Associates, Inc.
Landlord's obligations under this lease shall not be effective until such
architect certifies the gross rentable square footages of the Premises and
Building based upon BOMA standards to be 13,625 and 34,421 respectively.

31.  DEMISING WALL.

     Tenant is leasing the Premises in "as is" condition, as a continuation of
its occupancy of the Premises pursuant to a prior sublet between Tenant and
Premier Dental Products, Inc. To the extent that prior to the Commencement Date
no demising wall has been constructed between the Premises and the adjacent
space previously leased by Premier Dental Products, such demising wall shall be
constructed by Tenant at its sole cost and expense, in accordance with plans and
specifications approved by Landlord, and otherwise compliance with the
requirements of Sections 9 and 10 above.

32.  AMENDMENT TO ARTICLE 7 ENTITLED "OPERATION OF THE PROPERTY: PAYMENT OF
EXPENSES".

Article 7(a), is amended by adding the following to the end of the first
paragraph:

          Operating Expenses shall not include the following:

               (i) Costs, including permit, license and inspection costs,
          incurred with respect to the installation of tenant improvements made
          for new tenants in the Building or incurred in renovating or otherwise
          improving, decorating, painting or redecorating vacant space for
          tenants or other occupants of the Building;

               (ii) Attorney's fees and other costs and expenses incurred in
          connection with negotiations or disputes with present prospective
          tenants or other occupants of the Building;

               (iii) Costs incurred by Landlord due to code violations by
          Landlord or any tenant (other than Tenant), except to the extent such
          costs relate to building improvements made by Landlord to the Property
          that are required by any governmental authority relating to
          compliance with codes not applicable as of the Commencement Date, or
          which are incurred for the purpose of reducing operating expenses or
          directly enhancing the safety of tenants in the Building generally
          ("Included Capital Costs");

               (iv) Points and fees on debt or amortization on any mortgage
          encumbering the Building (other than financing Included Capital
          Costs);

               (v) Advertising and promotional expenditures and capitalized
          costs of signs in or on the Building identifying the owner of the
          Building or any tenant of the building (except charges for
          installation and maintenance of signs identifying Tenant);

               (vi) Any utility costs for which any tenant directly contracts
          with the local public service company;

               (vii) Costs incurred by Landlord with respect to goods and
          services (including utilities sold and supplied to tenants or
          occupants of the Building) to the extent that Landlord is otherwise
          entitled to reimbursement for such costs;

               (viii) Interest and late charges resulting from late payment of
          taxes, assessments, and other costs and expenses payable to the
          Landlord;

               (ix) Costs related to or arising out of the construction of any
          new structures or new capital improvements unrelated to the Building;

               (xi) Any and all expenses caused by the gross negligence of the
          Landlord;

               (xiii) Costs incurred for a particular tenant's needs and not for
          the benefit of tenants generally;

               (xiv) Management fees for the initial Term of the lease for any
          year in excess of five (5%) percent of rents collected for operating
          costs.

Article 7(a)(ii) is amended by changing the reference to 60 days in the fifth
line to 90 days, and adding the following at the end:

               In the event such inspection results in a reduction in Tenant's
               share of annual operating costs of more than five (5%) percent,
               the Landlord shall reimburse Tenant the reasonable costs of
               Tenant's inspection, representing fees paid to a reputable
               auditing firm whose compensation is not based on a portion of the
               savings generated for Tenant.

Article 7(e) is modified by adding the following at the end:

               Tenant shall be billed separately and directly by the provider of
               electrical service, which will be available, subject to same
               provider providing service generally, 24 hours per day, 7 days
               per week. There shall be no separate after hours charge for HVAC
               service beyond the electricity consumed by Tenant.

                                      R-2
<PAGE>
33.  AMENDMENT TO ARTICLE 9 ENTITLED "ALTERATIONS AND FIXTURES".

     Article 9 is amended by adding subsection (c) as follows:

          (c) Notwithstanding the foregoing, Landlord consents to the
          alterations shown on Valley Forge Scientific Space Plan 03.01.05
          prepared by jBH3 & Associates, Inc. Landlord shall not unreasonably
          withhold Tenant's request to install one or more supplemental air
          conditioning units, at locations to be approved by Landlord, and a
          back up generator for Tenant's use on grounds adjacent to the
          Building, subject to Landlord's approval of the specific plans and
          location of the generator compliance with the requirements of
          subsections (a) and (b) above and Section 10 below.

34.  AMENDMENT TO ARTICLE 11 ENTITLED LANDLORD'S RIGHTS TO RELOCATE TENANT;
RIGHT TO ENTRY.

     Article 11(a) is amended to delete word "Building" in the second line and
substitute the phrase "Renaissance Corporate Park", and change "60 days" to "90
days".

     The following is added to the end of Article 11(a):

     Landlord's relocation rights are subject to the following conditions:

          (i) Landlord shall endeavor to effectuate the relocation at a time to
          reduce disruption of Tenant's business and downtime, which may
          necessitate the move to occur on the weekend.

          (ii) The relocation space must have a floor configuration that
          accommodates Tenant's employees and its business operations in a
          similar manner as in the Premises.

          (iii) The relocation space must be on a contiguous floor configuration
          approved by Tenant, which approval must not be unreasonably withheld,
          delayed on conditioned.

          (iv) The Landlord shall pay for all Tenant's reasonable costs in
          connection with the relocation (including all charges to conduct the
          relocation on a weekend or holiday, if desired by Tenant) and all
          reasonable costs in connection with moving, the reinstallation of
          furniture, computer equipment, wiring, internet connections, roof top
          electrical devices, supplemental air conditioning systems and other
          systems and equipment use in Tenant's business.

          (v) Landlord will pay for the reasonable cost to replace Tenant's
          existing supply of business cards, stationary, marketing and product
          information with Tenant's address on them.

35.  AMENDMENT TO ARTICLE 13 ENTITLED "CONDEMNATION".

     Article 13(d) is amended by adding the following at the beginning thereof:

          Except as provided in Section 13(a) above with respect to a temporary
          taking for in excess of sixty (60) days.

     Article 13(d) is amended by adding the following at the end thereof:

          In the event that within forty-five (45) days after a Condemnation
          (whether total, partial or temporary), as a result of which
          Condemnation, Tenant is unable to conduct its business in the Premises
          in substantially the same manner as such business was conducted prior
          to the Condemnation, Tenant may cancel the Lease, upon 10 days written
          notice to Landlord, without any further liability to Landlord for rent
          thereafter accruing.

36.  AMENDMENT TO ARTICLE 15 ENTITLED "INDEMNIFICATION OF LANDLORD".

     Article 15 is amended by deleting the phrase "whether prior to, during or
after the Term" beginning on the fifth line and substituting the following:

          whether the claim is filed during or after the Term, for transactions
          and occurrences during the Term or the period of Tenant sublease of
          the Premises

37.  AMENDMENT TO ARTICLE 19 ENTITLED "SUBORDINATION; MORTGAGEE'S RIGHTS".

     Article 19(a) is amended to add the following at the end:

          Landlord shall request that such mortgagee execute and deliver a
          recordable subordination, non-disturbance and attorney agreement
          ("SNDA") in such mortgagee's standard form, which SNDA provided that,
          in the event of a foreclosure, sale under

                                      R-3
<PAGE>
     power of sale, ground or other lease termination or transfer in lieu of any
     of the foregoing or the exercise of any remedy [ILLEGIBLE] to any such
     Mortgage (a) Tenant's use and possession and enjoyment of the Premises
     shall not be disturbed and this Lease continue in full force and effect as
     long as no Event of Default on the part of Tenant occurs, and (b) this
     Lease shall automatically become a direct Lease between any successor to
     Landlord's interest, as landlord, and Tenant as if such successor
     [ILLEGIBLE] landlord originally named hereunder, except that such successor
     shall not be bound by any amendment to this lease made prior to the
     transfer of the Property to such successor without such successor's
     consent, nor shall such successor be liable for any [ILLEGIBLE] default by
     Landlord occurring prior to such successor acquiring title to the Building.

38.  AMENDMENT TO ARTICLE 23 ENTITLED "DEFAULT".

     Article 23(c) is amended by adding the following at the end:

          for substantially similar events of default

39.  AMENDMENT TO ARTICLE 27 ENTITLED "NOTICES".

     Article 27 is amended to provide that a copy of any notice required to be
     given to Tenant shall also be sent to:

          Russell U. Schenkman, Esquire
          Schenkman Jennings & Howard, LLC
          13 Roszel Road
          Princeton, NJ 08540

40.  LIMITATIONS ON LANDLORD'S ACCESS.

     Other than for an emergency, reasonable advance notice shall be provided
to Tenant prior to Landlord's access to the Premises. Landlord's right to show
the Premises to purchasers and mortgagors shall be upon reasonable advance
notice at times reasonably convenient to Tenant. Nothwithstanding anything in
this Lease to the contrary, except in an emergency situation, Tenant may
restrict [ILLEGIBLE] to the Premises, to protect information or equipment, which
Tenant reasonably deems to be confidential or critical to its business, unless
the Landlord, or its agents are accompanied by an employee of the Tenant and
Tenant may further restrict access to such areas to [ILLEGIBLE] when access will
not disrupt Tenant's business.

                                      R-4
<PAGE>
                                  EXHIBIT "A"

                               3600 HORIZON DRIVE
                                RENAISSANCE PARK
                              KING OF PRUSSIA, PA

                                  [FLOOR PLAN]

FLOOR PLAN
--------------------------------------------------------------------------------
SCALE:  NOT TO SCALE                                        DATE: AUGUST 8, 2002

DVS DESIGN STUDIOS                                                 LIBERTY
   corporate interior design                                --------------------
                                                               PROPERTY TRUST

10 Ridgewood Road                                          ASK FOR A LIBERTY
Malvern, PA 19355                                       MARKETING REPRESENTATIVE
e-mail: dvs_design@msn.com
<PAGE>
                                  EXHIBIT "B"

______________ _____, 20______                                  VIA CERTIFIED/RR

M_.__________________________
Valley Forge Scientific Corp.
3600 Horizon Drive
King of Prussia, PA

RE:  THE LEASE ("LEASE") DATED MARCH ___, 2005, FOR THE PREMISES LOCATED AT 3600
     HORIZON DRIVE, SUITE #, KING OF PRUSSIA, PENNSYLVANIA, BETWEEN LIBERTY
     PROPERTY LIMITED PARTNERSHIP ("LANDLORD") AND VALLEY FORGE SCIENTIFIC CORP.
     ("TENANT")

Dear _______________:

This is to confirm the following with respect to the referenced Lease:

          COMMENCEMENT DATE:        NOVEMBER 1, 2006
          EXPIRATION DATE:          OCTOBER 31, 2009

As set forth in Sections 6 and 7 of the Lease:

     (i)  The first full month (which is November, 2006) of the Minimum Annual
          Rent and the Estimated Amount of Operating Expenses installment is due
          at lease signing.

     (ii) If the Commencement Date is NOT the first day of a calendar month,
          then the prorated Minimum Annual Rent and the prorated Estimated
          Annual Operating Expenses installment are due for that partial month
          (the period from the Commencement Date until the first day of the next
          calendar month) on or before the Commencement Date. Accordingly, the
          following amounts are due on or before the Commencement Date.

On or before December 1, 2006, the December 2006 Rent will be due in the
following amount until adjusted in accordance with the Lease:

          MONTHLY MINIMUM ANNUAL RENT INSTALLMENT:                    $ 9,651.04
          MONTHLY ESTIMATED ANNUAL OPERATING EXPENSES INSTALLMENT:    $ 4,848.23
                                                                      ----------
          TOTAL MAY 2005 PAYMENT:                                     $14,499.27
                                                                      ==========

Thereafter, regular monthly payments will be due in the following amounts until
adjusted in accordance with the Lease:

          MONTHLY MINIMUM ANNUAL RENT INSTALLMENT:                    $ 9,651.04
          MONTHLY ESTIMATED ANNUAL OPERATING EXPENSES INSTALLMENT:    $ 4,848.23
                                                                      ----------
          TOTAL MONTHLY PAYMENT:                                      $14,499.27
                                                                      ==========

If you disagree with any of the above information, please advise in writing
within five (5) days of receipt of this letter. Otherwise, the Commencement
Date and the Expiration Date will be as set forth above.

Sincerely,

Liberty Property Limited Partnership
By: Liberty Property Trust, Sole General Partner

By:
   ---------------------------------------------
   Robert Murdocca
   Senior Portfolio Leasing/Marketing
<PAGE>
                                  EXHIBIT "C"

                                 BUILDING RULES

     1.   As stated in the lease, Tenant shall not use the Premises as a "place
of public accommodation" as defined in the American Disabilities Act of 1990,
which identifies the following categories into one or more of which a business
must fall to be a "place of public accommodation".

          a.   Places of lodging (examples: hotel, motel)
          b.   Establishments serving food or drink (examples: bar, restaurant)
          c.   Place of exhibition or entertainment (examples: motion picture
               house, theater, stadium, concert hall)
          d.   Places of public gathering (examples: auditorium, convention
               center, lecture hall)
          e.   Sales or rental establishments (examples: bakery, grocery store,
               hardware store, shopping center)
          f.   Service establishments (examples: bank, laundromat, barber shop,
               funeral parlor, hospital, gas station, business offices such as
               lawyer, accountant, healthcare provider or insurance office)
          g.   Stations used for specified public transportation (examples: bus
               terminal or depot)
          h.   Places of public display or collection (examples: museum,
               library, gallery)
          i.   Places of recreation (examples: park, zoo, amusement part)
          j.   Places of education (examples: nursery, elementary, secondary,
               private or other undergraduate or postgraduate school)
          k.   Social service center establishments (examples: day-care center,
               senior citizen center, homeless shelter, food bank, adoption
               agency)
          l.   Places of exercise or recreation (examples: gym, health spa,
               bowling alley, golf course)

     2.   Any sidewalks, lobbies, passages, elevators and stairways shall not
be obstructed or used by Tenant for any purpose other than ingress and egress
from and to the Premises. Landlord shall in all cases retain the right to
control or prevent access by all persons whose presence, in the judgment of
Landlord, shall be prejudicial to the safety, peace or character of the
Property.

     3.   The toilet rooms, toilets, urinals, sinks, faucets, plumbing or other
service apparatus of any kind shall not be used for purposes other than those
for which they were installed, and no sweepings, rubbish, rags, ashes,
chemicals or other refuse or injurious substances shall be placed therein or
used in connection therewith or left in any lobbies, passages, elevators or
stairways.

     4.   Tenant shall comply with all safety, fire protection and evacuation
procedures and regulations established by Landlord or governmental agency. No
person shall go on the roof with Landlord's permission.

     5.   Skylights, windows, doors and transoms shall not be covered or
obstructed by Tenant, and Tenant shall not install any window covering which
would affect the exterior appearance of the Building, except as approved in
writing by Landlord. Tenant shall not remove without Landlord's prior written
consent, any shades, blinds or curtains in the Premises.

     6.   Without Landlord's prior written consent, Tenant shall not hang,
install, mount, suspend or attach anything from or to sprinkler, plumbing,
utility or other lines. If Tenant hangs, installs, mounts suspends or attaches
anything from or to any doors, windows, walls, floors or ceilings, Tenant shall
sand an spackle all holes and repair any damage caused thereby or by the removal
thereof at or prior to the expiration or termination of the lease. Without
Landlord's prior written consent, no walls or partitions shall be painted,
papered or otherwise covered or moved in any way or marked or broken; nor shall
any connection be made to electric wires for running fans or motors or other
apparatus, devices or equipment; nor shall machinery of any kind other than
customary small business machines be allowed in the Premises; nor shall Tenant
use any other method of heating, air conditioning or air cooling than that
provided by Landlord; nor shall mechanics be allowed to work in or about the
Building other than those employed by Landlord.

     7.   Tenant shall not change any locks nor place additional locks upon any
doors and shall surrender all keys and passes at the end of the Term.

     8.   Tenant shall not use nor keep in the Building any matters having an
offensive odor, not explosive or highly flammable material nor shall any animals
other than seeing eye dogs in the company of their masters be brought into or
kept in or about the Premises.

     9.   If Tenant desires to introduce electrical, signaling, telegraphic,
telephonic, protective alarm or other wires, apparatus or devices, Landlord
shall direct where and how the same are to be placed, and except as so
directed, no installation boring or cutting shall be permitted. Landlord shall
have the right to prevent and to cut off the transmission of excessive or
dangerous current of electricity

                                      C-1
<PAGE>
annoyances into or through the Building or the Premises and to require the
changing of wiring connections or layout at Tenant's expense, to the extent that
Landlord may deem necessary, and further to require compliance with such
reasonable rules as Landlord may establish relating thereto, and in the event of
non-compliance with the requirements or rules, Landlord shall have the right
immediately to cut wires or to do what it considers necessary to remove the
danger, annoyance or electrical interference with apparatus in any part of the
Building. All wires installed by Tenant must be clearly tagged at the
distributing boards and junction boxes and elsewhere where required by Landlord,
with the number of the office to which said wires lead, and the purposes for
which the wires respectively are used, together with the name of the concern, if
any, operating same.

     10.  Tenant shall not place weights anywhere beyond the safe carrying
capacity of the Building which is designed to normal building standards for
floor loading capacity. Landlord shall have the right to exclude from the
Building heavy furniture, safes and articles which may be hazardous or to
require them to be located at designated places in the Premises. Tenant shall
obtain Landlord's written consent prior to the installation of any vending
machines in the Premises.

     11.  The use of rooms as sleeping quarters is strictly prohibited at all
times.

     12.  Tenant shall have the right, at Tenant's sole risk and responsibility,
to use its proportional share of the parking spaces and Property as reasonably
determined by Landlord. Tenant shall comply with all parking regulations
promulgated by Landlord from time to time for the orderly use of the vehicle
parking areas, including without limitation the following: Parking shall be
limited to automobiles, passenger or equivalent vans, motorcycles, light four
wheel pickup trucks and (in designated areas) bicycles. No vehicles shall be
left in the parking lot overnight. Parked vehicles shall not be used for vending
or any other business or other activity while parked in the parking areas.
Vehicles shall be parked only in striped parking spaces, except for loading and
unloading, which shall occur solely in zones marked for such purpose, and be so
conducted as to not unreasonably interfere with traffic flow within the Property
or with loading and unloading areas of other tenants. Employee and tenant
vehicles shall not be parked in spaces marked for visitor parking or other
specific use. Other vehicles entering or parking in the parking areas shall do
so at owner's sole risk, and Landlord assumes no responsibility for any damage,
destruction, vandalism or theft. Tenant shall cooperate with Landlord in any
measures implemented by Landlord to control abuse of parking areas, including
without limitation access control programs, tenant and guest vehicle
identification programs, and validated parking programs, provided that no such
validated parking program shall result in Tenant being charged for spaces to
which it has a right to use under its lease. Each vehicle owner shall promptly
respond to any sounding vehicle alarm or horn, and failure to do so may result
in temporary or permanent excluding of such vehicle from the parking areas. Any
vehicle which violates the parking regulations may be cited, towed at the
expense of the owner, temporarily or permanently excluded from the parking
areas, or subject to other lawful consequence.

     13.  Tenant shall not smoke in the Building which Landlord has designated
as a non-smoking building.

     14.  Canvassing, soliciting and distribution of handbills or any other
written material, and peddling in the Building are prohibited and Tenant shall
cooperate to prevent same.

     15.  Tenant shall provide Landlord with a written identification of any
vendors engaged by Tenant to perform services for Tenant on the Premises
(examples: security guards/monitors, telecommunications installers/maintenance).
Tenant shall permit Landlord's employees and contractors and no one else to
clean the Premises unless Landlord consents in writing. Tenant assumes all
responsibility for protecting its Premises from theft and vandalism and Tenant
shall see each day before leaving the Premises that all lights are turned out
and that the windows and the doors are closed and securely locked.

     16.  Landlord shall provide Tenant with the move-in and move-out policies
for the Building with which Tenant shall comply. Throughout the Term, no
furniture, packages, equipment, supplies or merchandise of Tenant will be
received in the Building or carried up or down in the elevators or stairways,
except during such hours as shall be designated by Landlord, and Landlord in all
cases shall have the exclusive right to prescribe the method and manner in which
the same shall be brought in or taken out of the Building. At the end of the
Term, Tenant's obligations regarding surrender of the Premises shall include
Tenant's obligation to shampoo all carpet, strip and wax all vinyl composite
tile and replace any damaged ceiling tiles, the cost of which obligations shall
be deducted from the Security Deposit if not completed by Tenant prior to the
Expiration Date.

     17.  Tenant shall not place oversized cartons, crates or boxes in any area
for trash pickup without Landlord's prior approval. Landlord shall be
responsible for trash pickup of normal office refuse placed in ordinary office
trash receptacles only. Excessive amounts of trash or other out-of-the ordinary
refuse loads will be removed by Landlord upon request at Tenant's expense.

     18.  Tenant shall cause all of Tenant's Agents to comply with these
Building Rules.

                                      C-2
<PAGE>
     19.  Landlord reserves the right to rescind, suspend or modify any rules or
regulations and to make such other rules and regulations as, in Landlord's
reasonable judgment, may from time to time be needed for the safety, care,
maintenance, operation and cleanliness of Property. Notice of any action by
Landlord referred to in this paragraph, given to Tenant, shall have the same
force and effect as originally made a part of the foregoing lease. New rules or
regulations will not, however, be unreasonably inconsistent with the proper
rightful enjoyment of the Premises by Tenant under the lease.

     20.  These Building Rules are not intended to give Tenant any rights or
claims in the event that Landlord does not enforce any of them against any other
tenants or if Landlord does not have the right to enforce them against any other
tenants and such non-enforcement will not constitute a waiver as to Tenant.

     21.  Tenant shall be deemed to have read these Building Rules and to have
agreed to abide by them as a condition to Tenant's occupancy of the Premises.

                                      C-3
<PAGE>
                                  EXHIBIT "D"

                               CLEANING SCHEDULE

I.      OFFICE AREA

        A.   Nightly (Monday through Friday - Holidays, excepted):

             1.   Empty wastepaper baskets, ashtrays, and refuse receptacles.

             2.   Dust sweep hard surface flooring.

             3.   Vacuum carpeted areas and rugs.

             4.   Hand dust and wipe clean with treated cloths all horizontal
                  surfaces including furniture, desk equipment, telephones,
                  windowsills and induction unit tops within normal reach.

             5.   Clean and sanitize all drinking fountains.

        B.   Weekly:

             1.   Remove finger marks from stairways, elevator and utility
                  closet doors and light switches.

        C.   Monthly:

             1.   Wash and wax resilient tile floors.

        D.   Quarterly:

             1.   Do high dusting not reached in daily cleaning to include:

                  (a)  pictures, frames, charts, graphs, and similar wall
                       hangings.

                  (b)  all vertical surfaces, such as walls, partitions, doors
                       and bucks not reached in nightly cleaning.

        E.   Annually:

             1.   Wash all light fixtures.

             2.   Dry clean drapes and wash venetian blinds, whichever is
                  supplied by Landlord or exterior windows.

II.     LAVATORIES

        A.   Nightly:

             1.   Sweep and wash floors with approved germicidal detergent
                  solution.

             2.   Wash and polish all mirrors, powder shelves, dispensers,
                  receptacles, light work, flushometers, pipings and toilet seat
                  hinges.

             3.   Wash both sides of toilet seats, wash basins, bowls, and
                  urinals with approved germicidal detergent solution.

             4.   Remove finger marks and smudges from toilet partitions,
                  ventilating grills, and tile walls.

             5.   Empty and clean towel and sanitary disposal receptacles,
                  remove waste to disposal areas.

             6.   Replenish paper towel, toilet tissue, soap and sanitary napkin
                  dispensers.

        B.   Monthly:

             1.   Wash partitions and tile walls.

             2.   Wash all waste receptacles with approved germicidal solution.

III.    PEST EXTERMINATION

        A.   Maintain pest extermination as needed.

<PAGE>
                                  EXHIBIT "E"

                          TENANT ESTOPPEL CERTIFICATE

     Please refer to the documents described in Schedule 1 hereto, (the "Lease
Documents") including the "Lease" therein described defined terms in this
Certificate shall have the same meanings as set forth in the Lease unless
otherwise expressly set forth herein and the undersigned Tenant hereby certifies
that it is the tenant under the Lease. Tenant hereby further acknowledges that
it has been advised the Lease may be collaterally assigned in connection with a
proposed financing secured by the Property and/or may be assigned in connection
with a sale of the Property and certifies both to Landlord and to any and all
prospective mortgagees and purchasers Property, including any trustee on behalf
of any holders of notes or other similar instruments, any holders from time to
time of such or other instruments, and their respective successors and assigns
(the "Mortgagees") that as of the date hereof:

     1.   The information set forth in attached Schedule 1 is true and correct.

     2.   Tenant is in occupancy of the Premises and the Lease is in full force
and effect, and, except by such writings as are identified by Schedule 1, has
not been modified, assigned, supplemented or amended since its original
execution, nor are there any other agreements between Landlord and Tenant
concerning the Premises, whether oral or written.

     3.   All conditions and agreements under the Lease to be satisfied or
performed by Landlord have been satisfied and performed.

     4.   Tenant is not in default under the Lease Documents, Tenant has not
received any notice of default under the Lease Documents and, to Tenant's
knowledge, there are no events which have occurred that, with the giving of
notice and/or the passage of time, may result in a default by Tenant under the
Lease Documents.

     5.   Tenant has not paid any Rent due under the Lease more than 30 days in
advance of the date due under the Lease and Tenant has no rights of setoff,
counterclaim, concession or other rights of diminution of any Rent due and
payable under the Lease except as set forth in Schedule 1.

     6.   Except as set forth in Schedule 1, to Tenant's knowledge, there are
no uncured defaults on the part of Landlord under the Lease Documents, Tenant
has not sent any notice of default under the Lease Documents to Landlord, and
there are no events which occurred that, with the giving of notice and/or the
passage of time, would result in a default by Landlord thereunder, and that at
the present time Tenant has no claim against Landlord under the Lease
Documents.

     7.   Except as expressly set forth in Part G of Schedule 1, there are no
provisions for any, and Tenant has no, options with respect to the Premises or
all or any portion of the Property.

     8.   Except as set forth on Part M of Schedule 1, no action, voluntary or
involuntary, is pending against Tenant under federal or bankruptcy or
insolvency law.

     9.   The undersigned has the authority to execute and deliver this
Certificate on behalf of Tenant and acknowledges that Mortgagees will rely upon
this Certificate in purchasing the Property or extending credit to Landlord or
its successors in interest.

     10.  This Certificate shall be binding upon the successors, assigns and
representatives of Tenant and any party claiming through under Tenant and shall
inure to the benefit of all Mortgagees.

     IN WITNESS WHEREOF, Tenant has executed this Certificate this _____ day of
__________, 19_____.

                                             -----------------------------------
                                             Name of Tenant

                                             By:
                                                --------------------------------

                                             Title:
                                                   -----------------------------

                                      E-1
<PAGE>
                   SCHEDULE 1 TO TENANT ESTOPPEL CERTIFICATE

                Lease Documents, Lease Terms and Current Status

A.  Date of Lease:

B.  Parties:

    1.  Landlord:

    2.  Tenant d/b/a:

C.  Premises known as:

D.  Modifications, Assignments, Supplements or Amendments to Lease:

E.  Commencement Date:

F.  Expiration of Current Term:

G.  Options:

H.  Security Deposit Paid to Landlord:   $

I.  Current Fixed Minimum Rent (Annualized):  $

J.  Current Additional Rent (and if applicable, Percentage Rent)(Annualized):  $

K.  Current Total Rent:  $

L.  Square Feet Demised:

M.  Tenant's Bankruptcy or other Insolvency Actions:

                                      E-2<PAGE>
                                                                  EXHIBIT 10.17

                AGREEMENT FOR THE SALE OF COMMERCIAL REAL ESTATE          A/S-C

This form recommended and approved for, but not restricted to use by, the
members of the Pennsylvania Association of REALTORS(R)(PAR)

             SELLER'S BUSINESS RELATIONSHIP WITH PA LICENSED BROKER

BROKER (Company) WEICHERT REALTORS, MCCARTHY ASSOCIATES     PHONE  215-843-1414
                 ----------------------------------------          -------------

ADDRESS 6901 GERMANTOWN AVENUE PHILADELPHIA PA 19119          FAX   215-842-0683
        -------------------------------------------------         --------------
BROKER IS THE AGENT FOR SELLER. Designated Agent(s) for Seller,
if applicable:
              ------------------------------------------------------------------

                                       OR
Broker is NOT the Agent for Seller and is a/an: [ ] AGENT FOR BUYER
[ ] TRANSACTION LICENSEE

--------------------------------------------------------------------------------

--------------------------------------------------------------------------------
             BUYER'S BUSINESS RELATIONSHIP WITH PA LICENSED BROKER

BROKER (Company) WEICHERT REALTORS, MCCARTHY ASSOCIATES       PHONE 215-843-1414
                -------------------------------------------        -------------
ADDRESS  6901 GERMANTOWN AVENUE PHILADELPHIA PA 19119         FAX 215-842-0643
        ---------------------------------------------------       --------------
BROKER IS THE AGENT FOR BUYER. Designated Agent(s) for Buyer,
if applicable:
              ------------------------------------------------------------------

                                       OR

Broker Is NOT the Agent for Buyer and is a/an: [ ] AGENT FOR SELLER
[ ] SUBAGENT FOR SELLER [ ] TRANSACTION LICENSEE.

When the same Broker is Agent for Seller and Agent for Buyer, Broker is a Dual
Agent. All of Broker's licensees are also Dual Agents UNLESS there are separate
Designated Agent(s) for Buyer and Seller. If the same Licensee is designated for
Seller and Buyer, the Licensee is a Dual Agent.

1.   This Agreement, dated March 29, 2003, is between
                           --------------
     SELLER(S):

     DIVERSIFIED ELECTRONICS, CO, INC.
     --------------------------------------
     called "Seller," and BUYER(S):

     Stan Smith and or assigns called "Buyer."

2.   PROPERTY. Seller hereby agrees to sell and convey to Buyer, who hereby
     agrees to purchase: ALL THAT CERTAIN lot or piece of ground with buildings
     and improvements thereon erected, if any, known as: 4969 WAKEFIELS STREET

     in the CITY                                  of  PHILADELPHIA
            -------------------------------------     -------------------------,
     County of PHILADELPHIA                               in the Commonwealth of
               -------------------------------------------
     Pennsylvania, Zip Code 19144
                           ---------------------
     Identification (e.g., Tax ID#; Parcel#; Lot, Block; Deed Book, Page,
     Recording Date)

     ---------------------------------------------------------------------------

3.   TERMS (10-01)
     (A) Purchase Price $200,000.00                                 U.S. Dollars
                        --------------------------------------------
         which will be paid to Seller by Buyer as follows:
<Table>
<S>                                                                                           <C>
         (1)  Cash or check at signing this Agreement:                                        $  5,000.00
                                                      --------------------------------------  -----------
         (2)  Cash or check within      days of the execution of this Agreement:              $
                                   ----                                         ------------  -----------
         (3)                                                                                  $
              ------------------------------------------------------------------------------  -----------
         (4)                                                                                  $
              ------------------------------------------------------------------------------  -----------
         (5)  Cash, cashier's or certified check at time of settlement:                       $195,000.00
                                                                       ---------------------  -----------
                                                                                    TOTAL     $200,000.00
                                                                                              -----------
</Table>

     (B)  Deposits paid on account of purchase price to be held by Broker for
          Seller, unless otherwise stated here:

          ----------------------------------------------------------------------

     (C)  Seller's written approval to be on or before: APRIL 23, 2005  /s/ SS
                                                        --------------
     (D)  Settlement to be on May 30, 2005, or before if Buyer and Seller agree.
                              ------------
     (E)  Conveyance from Seller will be by fee simple deed of special warranty
          unless otherwise stated here:

          ----------------------------------------------------------------------

     (F)  Payment of transfer taxes will be divided equally between Buyer and
          Seller unless otherwise stated here:

          ----------------------------------------------------------------------

     (G)  At time of settlement, the following will be adjusted pro-rata on a
          daily basis between Buyer and Seller, reimbursing where applicable:
          taxes (see Notices and Information Regarding Tax Proration); rents;
          interest on mortgage assumptions; condominium fees, if any; water
          and/or sewer fees, if any; together with any other lienable municipal
          service. The charges are to be pro-rated for the period(s) covered:
          Seller will pay up to and including the date of settlement; Buyer will
          pay for all days following settlement, unless otherwise stated here:

          ----------------------------------------------------------------------

PREPARED BY: John O'Connell, Agent
Agreement For The Sale of Commercial Real Estate. 10/01. Pennsylvania
Association of REALTORS(R)
COPYRIGHT PENNSYLVANIA ASSOCIATION OF REALTORS(R) 2001
[ILLEGIBLE](R) Software (C)2005. Version 6.16. Software Registered to:
Dennis M. McCarthy, WEICHERT, REALTORS(R) - McCarthy Associates
                               03/29/05 14:11:44

                                                                Page 1 of 9

Buyer(s) /s/ SS                                             Seller(s)
        -----------                                                  ---------

<PAGE>

================================================================================
     (H)  Buyer shall reimburse Seller for the actual costs of any remaining
          heating, cooking or other fuels stored on the Property at the time of
          settlement, unless otherwise stated here:
                                                   -----------------------------
4.   FIXTURES & PERSONAL PROPERTY (1-00)
     (A)  INCLUDED in this sale and purchase price are all existing items
          permanently installed in the Property, free of liens, including
          plumbing; HVAC equipment; lighting fixtures (including chandeliers and
          ceiling fans); and water treatment systems, unless otherwise stated
          below. Also included:

     ---------------------------------------------------------------------------
     (B)  LEASED items:

     ---------------------------------------------------------------------------
     (C)  EXCLUDED fixture and items:
     /s/ SS       All EQUIPMENT, FIXTURES AND PROPERTY USED IN SELLER'S BUSINESS
     ---------------------------------------------------------------------------
5.   SPECIAL CLAUSES
     (A)  The following are part of this Agreement if checked:
          [ ]                                  [ ]
              -------------------------------       ----------------------------
          [ ]                                  [ ]
              -------------------------------       ----------------------------
     (B)  SPECIAL PROVISIONS (IF ANY):
 /s/ SS   Buyer will have 30 days to conduct Due Diligence. After such time, if
          studies reveal defects which Buyer finds unacceptable, Buyer will
          exercise his right to cancel Agreement of Sale and all deposit monies
          will be returned to Buyer.
6.   POSSESSION (5-01)
     (A)  Possession is to be delivered by deed, keys and:
          1.   Physical possession to vacant Property free of debris, with all
               structures broom clean, at day and time of settlement UNLESS
               otherwise stated here: __________________________________, AND/OR
          2.   Assignment of existing lease(s), together with any security
               deposits and interest, at time of settlement, if Property is
               leased at the execution of this Agreement or unless otherwise
               specified here:

               -----------------------------------------------------------------
               Buyer will acknowledge existing lease(s) by initializing said
               lease(s) at time of signing this Agreement if Property is leased.
     (B)  Seller will not enter into any new leases, written extension of
          existing leases, if any, or additional leases for the Property without
          written consent of the Buyer.
7.   DATES/TIME IS OF THE ESSENCE (5-01)
     (A)  The said date for settlement and all other dates and times referred
          to for the performance of any of the obligations of this Agreement are
          hereby agreed to be of the essence of this Agreement.
     (B)  For the purposes of this Agreement, number of days will be counted
          from the date of execution, by excluding the day this Agreement was
          executed and including the last day of the time period.
     (C)  The date of settlement is not extended by any other provision of this
          Agreement and may only be extended by written agreement of the
          parties.

8.   FINANCING CONTINGENCY (5-01)
     [X]  WAIVED. This sale is NOT contingent on financing.
     [ ]  ELECTED
     (A)  This sale is contingent upon Buyer obtaining financing as follows:
          1.   Amount of loan $ _____________________
          2.   Minimum Term _________ years
          3.   Type of loan ___________________________________________________
          4.   Buyer agrees to accept the interest rate as may be committed by
               the lender, not to exceed a maximum interest rate of ________%
     (B)  Within 10 days of the execution of this Agreement, Buyer will make a
          completed, written application to a responsible lender according to
          the terms above. The Broker for Buyer, if any, otherwise the Broker
          for Seller, is authorized to communicate with the lender for the
          purposes of assisting in the loan process.
     (C)  1. Upon receipt of a financing commitment, Buyer will promptly deliver
             a copy of the commitment to Seller.
          2. Financing commitment date ___________________________. Unless
             otherwise agreed to in writing by Buyer and Seller, if a written
             commitment is not received by Seller by the above date, all deposit
             monies paid on account of purchase price will be returned promptly
             to Buyer and this Agreement will be VOID. Buyer will be responsible
             for any premiums for mechanics lien insurance and/or title search,
             or fee for cancellation of same, if any; AND/OR any premium for
             flood insurance and/or fire insurance with extended coverage,
             insurance binder charges or cancellation fee, if any; AND/OR any
             appraisal fees and charges paid in advance to lender.
9.   ZONING CLASSIFICATION (5-01)

     Failure of this Agreement to contain the zoning classification (except in
     cases where the property (and each parcel thereof, if subdividable) is
     zoned solely or primarily to permit singe-family dwellings) will render
     this Agreement voidable at the option of the Buyer, and, if voided, any
     deposits tendered by the Buyer will be returned to the Buyer without any
     requirement for court action.
     Zoning Classification: R-9 and partly R-5
                            ------------------

PREPARED BY: John O'Connell, Agent
Agreement For The Sale of Commercial Real Estate. 10/01. Pennsylvania
Association of REALTORS(R)
COPYRIGHT PENNSYLVANIA ASSOCIATION OF REALTORS(R) 2001
[ILLEGIBLE](R) Software (C)2005. Version 6.16. Software Registered to:
Dennis M. McCarthy, WEICHERT, REALTORS(R) - McCarthy Associates
                               03/29/05 14:11:44

                                                                Page 2 of 9

Buyer(s) /s/ SS                                             Seller(s)
        -----------                                                  ---------

<PAGE>
10.  ZONING CONTINGENCY (5-01)
     [X]  WAIVED
     [ ]  ELECTED. Within ____________ days of the execution of this Agreement
          by all parties, Buyer will verify that the proposed use of the
          Property as _________________________________ is permitted. In the
          event the proposed use is not permitted, Buyer will, within the time
          given for verification, notify Seller in writing that the proposed use
          of the Property is not permitted and Buyer will (check only one):
          [ ]  Option 1. Within the time for verifying the zoning
               classification, notify Seller, in writing, of Buyer's decision of
               proceed with the purchase of the Property or terminate the
               Agreement. Should Buyer elect to terminate the Agreement all
               deposit monies paid on account of purchase price will be returned
               promptly to Buyer and this Agreement will be VOID. Failure of
               Buyer to provide written notice of Buyer's decision will
               constitute a WAIVER of this contingency and Buyer accepts the
               Property and agrees to the RELEASE set forth in paragraph 25 of
               this Agreement.
          [ ]  Option 2. Make application for approval (or variance/
               non-conforming use/conditional use/special exception) from
               ___________________ (municipality) to use the Property as
               ____________________ (proposed use).
               (A)  Such application will be made on or before ________________.
               (B)  Buyer will pay for applications, legal fees, engineering
                    and any other cost associated with obtaining approval.
               (C)  If the municipality requires the application to be signed
                    by the current owner, Seller agrees to do so.
               (D)  If a final, unappealable approval is not obtained by
                    _______________________, all deposit monies paid on account
                    of purchase price will be returned promptly to Buyer and
                    this Agreement will be VOID.

11.  STATUS OF WATER (5-01)
     Seller represents that Property is served by:
     [X]  Public water
     [ ]  On-site water
     [ ]  Community Water
     [ ]  None
     [ ]  _____________________________________________________________________
     Seller further warrants that the system(s) is/are fully paid for as of the
     execution date of this Agreement.

12.  STATUS OF SEWER (5-01)
     Seller represents that Property is served by:
     [X]  Public Sewer
     [ ]  Community Sewage Disposal System
     [ ]  Off Property Sewage Disposal System
     [ ]  Individual On-lot Sewage Disposal System (See Sewage Notice 1)
     [ ]  Individual On-Lot Sewage Disposal System in Proximity to Well (See
          Sewage Notice 1; see Sewage Notice 4, if applicable)
     [ ]  Ten-acre Permit Exemption (See Sewage Notice 2)
     [ ]  Holding Tank (See Sewage Notice 3)
     [ ]  None (See Sewage Notice 1)
     [ ]  None Available (See Sewage Notice 5 or Sewage Notice 6, as applicable)
     [ ]  _____________________________________________________________________
     Seller further warrants that the system(s) is/are fully paid for as of the
     execution date of this Agreement.

13.  PROPERTY DEFECTS DISCLOSURE (10-01)
     (A)  Seller represents and warrants that Seller has no knowledge except as
          noted in this Agreement that: (1) The premises have been contaminated
          by any substance in any manner which requires remediation; (2) The
          Property contains wetlands, flood plains, or any other environmentally
          sensitive areas, development of which is limited or precluded by law;
          (3) [The Property contains asbestos, polychlorinated biphenyls,
          lead-based paint or any other substance, the removal or disposal of
          which is subject to any law or regulation;] and (4) It has violated
          any law in the handling or disposing of any material or waste or the
          discharge of any material into the soil, air, surface water, or ground
          water from the Property.
     (B)  Seller and Buyer acknowledge that to their knowledge any Broker
          identified in this Agreement: (1) Is a licensed real estate broker;
          (2) Is not an expert in construction, engineering, or environmental
          matters; and (3) Has not made and will not make any representations or
          warranties nor conduct investigations of the environmental condition
          or suitability of the Property or any adjacent property, including but
          not limited to those conditions listed in paragraph 13(A).

14.  NOTICES AND ASSESSMENTS (5-01)
     (A)  Seller represents as of Seller's execution of this Agreement, that to
          it's knowledge no public improvement, condominium or owner association
          assessments have been made against the Property which remain unpaid
          and that no notice by any government or public authority has been
          served upon Seller or anyone on the Seller's behalf, including notices
          relating to violations of zoning, housing, building, safety or fire
          ordinances which remain uncorrected, and that Seller knows of no
          condition that would constitute violation of any such

PREPARED BY: John O'Connell, Agent
Agreement for The Sale Of Commercial Real Estate, 10/01. Pennsylvania
Association of REALTORS(R)
COPYRIGHT PENNSYLVANIA ASSOCIATION OF REALTORS(R) 2001
[ILLEGIBLE](R) Software, (C)2005, Version 6.16. Software Registered to:
Dennis M. McCarthy, WEICHERT, Realtors(R) - McCarthy Associates

                                                                Page 3 of 9

Buyer(s) /s/ SS              03/29/05 14:11:44                       Seller(s)
        -----------                                                  ---------

<PAGE>
          ordinances which remains uncorrected, unless otherwise specified here:
          Buyer requests clean and clear city certifications - No violations
          ----------------------------------------------------------------------

     (B)  Seller knows of no other potential notices (including violations) and
          assessments except as follows:
          Buyer requests clean and clear city certifications - No violations
          ----------------------------------------------------------------------

     (C)  Any notice of improvements or assessments received on or before the
          date of Seller's acceptance of this Agreement, unless improvements
          consist of sewer or water lines not in use, shall be the
          responsibility of the Seller; any notices received thereafter shall be
          the responsibility of the Buyer.

     (D)  If required by law, Seller will deliver to Buyer, on or before
          settlement, a certification from the appropriate municipal department
          or departments disclosing notice of any uncorrected violation of
          zoning, building, safety, or fire ordinances. Provided that the costs
          to obtain same does not exceed $5,000.

     (E)  Buyer is advised that access to a public road may require issuance of
          a highway occupancy permit from the Department of Transportation.

15.  TITLE AND COSTS (1-00)
     (A)  The Property is to be conveyed free and clear of all liens,
          encumbrances, and easements, EXCEPTING HOWEVER the following: existing
          deed restrictions, historic preservation restrictions or ordinances,
          building restrictions, ordinances, easements of roads, easements
          visible upon the ground, easements of record, privileges or rights of
          public service companies, land use restrictions pursuant to property
          enrollment in a preferential tax program if any; otherwise the title
          to the above described real estate will be good and marketable and
          such as will be insured by a reputable Title Insurance Company at the
          regular rates.

     (B)  In the event Seller is unable to give a good and marketable title and
          such as will be insured by a reputable Title Company at the regular
          rates, as specified in paragraph 15(A), Buyer will have the option of:
          (1) Taking such title as Seller can give, with no change to the
          selling price; or (2) Being repaid all monies paid by Buyer to Seller
          on account of purchase price and being reimbursed by Seller for any
          costs incurred by Buyer not to exceed $750.00 for those items
          specified in paragraph 15(C) and in paragraph 15(D) items (1), (2),
          (3); in which case there will be no further liability or obligation on
          either of the parties hereto and this Agreement will become VOID.

     (C)  Any survey or surveys which may be required by the Title Insurance
          Company or the abstracting attorney, for the preparation of an
          adequate legal description of the Property (or the correction
          thereof), will be secured and paid for by Buyer. However, any survey
          or surveys desired by Buyer or required by the mortgage lender will be
          secured and paid for by buyer.

     (D)  Buyer will pay for the following: (1) Title search, title insurance
          and/or mechanics lien insurance or fee for cancellation of same, if
          any; (2) Flood insurance, fire insurance with extended coverage, mine
          subsidence insurance, and cancellation fees, if any; (3) Appraisal
          fees and charges paid in advance to mortgage lender, if any; (4)
          Buyer's customary settlement costs and accruals.

16. COAL NOTICE
     [X]  NOT APPLICABLE
     [ ]  APPLICABLE. THIS DOCUMENT MAY NOT SELL, CONVEY, TRANSFER, INCLUDE OR
          INSURE THE TITLE TO THE COAL AND RIGHTS OF SUPPORT UNDERNEATH THE
          SURFACE LAND DESCRIBED OR REFERRED TO HEREIN, AND THE OWNER OR OWNERS
          OF SUCH COAL MAY HAVE THE COMPLETE LEGAL RIGHT TO REMOVE ALL SUCH COAL
          AND IN THAT CONNECTION, DAMAGE MAY RESULT TO THE SURFACE OF THE LAND
          AND ANY HOUSE, BUILDING OR OTHER STRUCTURE ON OR IN SUCH LAND. (This
          notice is set forth in the manner provided in Section 1 of the Act of
          July 17, 1957, P.L. 984) "Buyer acknowledges that he may not be
          obtaining the right of protection against subsidence resulting from
          coal mining operations, and that the property described herein may be
          protected from damage due to mine subsidence by a private contract
          with the owners of the economic interests in the coal. This
          acknowledgement is made for the purpose of complying with the
          provisions of Section 14 of the Bituminous Mine Subsidence and the
          Land Conservation Act of April 27, 1966." Buyer agrees to sign the
          deed from Seller which deed will contain the aforesaid provision.

17.  TAX DEFERRED EXCHANGE (10-01)
     [X]  NOT APPLICABLE
     [ ]  APPLICABLE. In the event Seller wishes to enter into a tax deferred
          exchange for the Property pursuant to Section 1031 of the Internal
          Revenue Code, Buyer agrees to cooperate with Seller in connection with
          such exchange, including the execution of such documents as may be
          reasonably necessary to conduct the exchange, provided that there
          shall be no delay in the agreed-to settlement date, and that any
          additional costs associated with the exchange are paid solely by
          Seller. Buyer is aware that Seller anticipates assigning its interest
          in this Agreement to a third party under an Exchange Agreement and
          does hereby consent to such assignment. Buyer shall not be required to
          execute any note, contract, deed or other document providing any
          liability which would survive the exchange, nor shall Buyer be
          obligated to take title to any property other than the Property
          described in this Agreement. Seller shall indemnify and hold harmless
          Buyer against any liability which arises or is claimed to have arisen
          from any aspect of the exchange transaction.

18.  COMMERCIAL CONDOMINIUM (10-01)
     [X]  NOT APPLICABLE
     [ ]  APPLICABLE. Buyer acknowledges that the condominium unit to be
          transferred by the terms of this Agreement is intended for
          non-residential use, and that Buyer may agree to modify or waive the
          applicability of certain provisions of the Uniform Condominium Act of
          Pennsylvania (68 Pa. C.S. Section 3101 et seq.).

19.  RECORDING (5-01) This Agreement will not be recorded in the Office for the
     Recording of Deeds or in any other office or place of public record. If
     Buyer causes or permits this Agreement to be recorded, Seller may elect to
     treat such act as a breach of this Agreement.

20.  ASSIGNMENT (3-85) This Agreement will be binding upon the parties, their
     respective heirs, personal representatives, guardians and successors, and,
     to the extent assignable, on the assigns of the parties hereto, it being
     expressly understood, however, that the Buyer will not transfer or assign
     this Agreement without the prior written consent of the Seller.

21.  DEPOSIT AND RECOVERY FUND (1-00)
     (A)  Deposits paid by Buyer within 30 days of settlement will be by cash,
          cashier's or certified check. Deposits, regardless of the form of
          payment and the person designated as payee, will be paid in U.S.
          Dollars to Broker or party identified in paragraph 3(B), who will

PREPARED BY: John O'Connell, Agent
Agreement for The Sale Of Commercial Real Estate. 10/01. Pennsylvania
Association of REALTORS(R)
COPYRIGHT PENNSYLVANIA ASSOCIATION OF REALTORS(R) 2001
[ILLEGIBLE](R) Software, (C)2005, Version 6.16 Software Registered to:
Dennis M. McCarthy, WEICHERT, Realtors(R) - McCarthy Associates

                                                                Page 4 of 9

Buyer(s) /s/ SS           03/29/05  14:11:44                Seller(s)
        -----------                                                  ---------

<PAGE>
           retain them in an escrow account until consummation or termination
           of this Agreement in conformity with all applicable laws and
           regulations. Any uncashed check tendered as deposit may be held
           pending the acceptance of this offer.
     (B)   In the event of a dispute over entitlement to deposit monies, a
           broker holding the deposit is required by the Rules and Regulations
           of the State Real Estate Commission (49 Pa. Code Section 35.327) to
           retain the monies in escrow until the dispute is resolved. In the
           event of litigation for the return of deposit monies, a broker will
           distribute the monies as directed by a final order of court or the
           written agreement of the parties. Buyer and Seller agree that, the
           seller may deposit the monies with any court with courtroom
           Jurisdiction and then be relieved of obligation thereunder.
     (C)   A Real Estate Recovery Fund exists to reimburse any persons who have
           obtained a final civil judgment against a Pennsylvania real estate
           licensee owing to fraud, misrepresentation, or deceit in a real
           estate transaction and who have been unable to collect the judgment
           after exhausting all legal and equitable remedies. For complete
           details about the Fund, call (717) 783-3658, or (800) 822-2113
           (within Pennsylvania) and (717) 783-4854 (outside Pennsylvania).

22.  MAINTENANCE AND RISK OF LOSS (5-01)
     (A)   Seller will maintain the Property, and any personal property
           specified herein, in its present condition, normal wear and tear
           excepted.
     (B)   Seller will promptly notify the Buyer if, at any time prior to the
           time of settlement, all or any portion of the Property is destroyed,
           or damaged as a result of any cause whatsoever.
     (C)   Seller will bear risk of loss from fire or other causes until time of
           settlement. In the event that damage to any property included in this
           sale is not repaired or replaced prior to settlement, Buyer may
           rescind this Agreement and receiving all monies paid on account.
           Buyer is hereby notified that he/she may insure his/her equitable
           interest in this Property as of the time this Agreement is accepted.

23.  CONDEMNATION (5-01)
     Seller has no knowledge of any current or pending condemnation or eminent
     domain proceedings that would affect the Property. If any portion of the
     Property should be subject to condemnation or eminent domain proceedings
     after the signing of this Agreement, Seller shall immediately advise Buyer,
     in writing, of such proceedings. Buyer shall have the option to terminate
     this Agreement by providing written notice to Seller within fifteen (15)
     days after Buyer learns of the filing of such proceedings, in which case
     Seller shall return to Buyer all money paid on account of the purchase
     price by Buyer. Buyer's failure to provide notice of termination within the
     time stated will constitute a WAIVER of this contingency and all other
     terms of the Agreement remain in full force and effect.

24.  WAIVER OF CONTINGENCIES (1-00)
     In the event this Agreement is contingent on Buyer's right to inspect
     and/or repair the Property, Buyer's failure to exercise any of Buyer's
     options specified in the contingency provision(s) within the time limits
     will constitute a WAIVER of that contingency and Buyer accepts the Property
     and agrees to the RELEASE set forth in paragraph 25 of this Agreement.

25.  RELEASE (1-00) Buyer hereby releases, quit claims and forever discharge
     SELLER, ALL BROKERS, their LICENSEES, EMPLOYEES, and any OFFICER or PARTNER
     of any one of them and any other PERSON, FIRM, or CORPORATION who may be
     liable by or through them, from any and all claims, losses or demands,
     including, but not limited to, personal injuries and property damage and
     all of the consequences thereof, whether now known or not, which may arise
     from the presence of termites or other wood-boring insects, radon,
     lead-based paint hazards, environmental hazards, any defects in the
     individual on-lot sewage disposal system or deficiencies in the on-site
     water service system, or any defects or conditions on the Property. This
     release will survive settlement.

26.  REPRESENTATIONS (5-01)
     (A)   Buyer understands that any representations, claims, advertising,
           promotional activities, brochures or plans of any kind made by
           Seller, Brokers, their licensees, employees, officers or partners are
           not a part of this Agreement unless expressly incorporated or stated
           in this Agreement. It is further understood that this Agreement
           contains the whole agreement between Seller and Buyer and there are
           no other terms, obligations, covenants, representations, statements
           or conditions, oral or otherwise of any kind whatsoever concerning
           this sale. Furthermore, this Agreement will not be altered, amended,
           changed or modified except in writing executed by the parties.

     (B)   It is understood that Buyer has inspected the Property before signing
           this Agreement (including fixtures and any personal property
           specifically scheduled herein), or has waived the right to do so, and
           has agreed to purchase it in its present condition unless otherwise
           stated in this Agreement. Buyer acknowledges that Brokers, their
           licensees, employees, officers or partners have not made an
           independent examination or determination of the structural soundness
           of the Property, the age or condition of the components,
           environmental conditions, the permitted uses, or of conditions
           existing in the locale where the Property is situated; nor have they
           made a mechanical inspection of any of the systems contained therein.

     (C)   Broker(s) may perform services to assist unrepresented parties in
           complying with the terms of this Agreement.

     (D)   The headings, captions, and line numbers in this Agreement are meant
           only to make it easier to find the paragraphs.

27.  DEFAULT (1-00)
     Should buyer:
     (A)  Fail to make any additional payments as specified in paragraph 3; OR

     (B)  Furnish false or incomplete information to Seller, Broker for Seller,
          Broker for Buyer, or the lender, if any, concerning the Buyer's legal
          or financial status, or fail to cooperate in the processing of the
          loan application, which acts would result in the failure to obtain
          the approval of a loan commitment; OR

     (C)  Violate or fail to fulfill and perform any other terms or conditions
          of this Agreement;
          then in such case, Seller has the option of retaining all sums paid by
          Buyer, including the deposit monies, 1) on account of purchase price,
          or 2) as monies to be applied to Seller's damages, or 3) as liquidated
          damages for such breach, as Seller may elect, unless otherwise checked
          below.
     [X]  Seller is limited to retaining sums paid by Buyer, including deposit
          monies, as liquidated damages.
          If Seller elects to retain all sums paid by Buyer, including deposit
          monies, as liquidated damages, Buyer and Seller will be released from
          further liability or obligation and this Agreement will be VOID.

PREPARED BY: John O'Connell, Agent
Agreement for The Sale Of Commercial Real Estate, 10/01. Pennsylvania
Association of REALTORS(R)
COPYRIGHT PENNSYLVANIA ASSOCIATION OF REALTORS(R) 2001
[ILLEGIBLE](R) Software, (C)2005, Version 6.16 Software Registered to:
Dennis M. McCarthy, WEICHERT, Realtors(R) - McCarthy Associates

                                                                Page 5 of 9

Buyer(s) /s/ SS          03/29/05    14:11:44               Seller(s)
        -----------                                                  ---------

<PAGE>
28.  CERTIFICATION OF NON-FOREIGN INTEREST (10-01)
     [ ]  Seller IS a foreign person, foreign corporation, foreign partnership,
          foreign trust, or a foreign estate subject to Section 1445 of the
          Internal Revenue Code, which provides that a transferee (Buyer) of a
          U.S. real property interest must withhold tax if the transferor
          (Seller) is a foreign person.
     [X]  Seller is NOT a foreign person, foreign corporation, foreign
          partnership, foreign trust, or a foreign estate as defined by the
          Internal Revenue Code, or is otherwise not subject to the tax
          withholding requirement of Section 1445 of the Internal Revenue Code.
          To inform Buyer that the withholding of tax is not required upon the
          sale/disposition of the Property by Seller, Seller hereby agrees to
          furnish Buyer, at or before closing, with the following:
          [ ]  An affidavit stating, under penalty of perjury, the Seller's U.S.
               taxpayer identification number and that the Seller is not a
               foreign person.
          [ ]  A "qualifying statement," as defined by statute, that tax
               withholding is not required by Buyer.
          [ ]  Other:__________________________________________________________
     Seller understands that any documentation provided under this provision may
     be disclosed to the Internal Revenue Service by Buyer, and that any false
     statements contained therein could result in punishment by fine,
     imprisonment, or both.

29.  ARBITRATION OF DISPUTES (1-00) Buyer and Seller agree to arbitrate any
     dispute between them that cannot be amicably resolved. After written demand
     for arbitration by either Buyer or Seller, each party will select a
     competent and disinterested arbitrator. The two so selected will select a
     third. If selection of the third arbitrator cannot be agreed upon within 30
     days, either party may request that selection be made by a judge of a court
     of record in the county in which arbitration is pending. Each party will
     pay its chosen arbitrator, and bear equally expenses for the third and all
     other expenses of arbitration. Arbitration will be conducted in accordance
     with the provisions of Pennsylvania Common Law Arbitration 42 Pa. C.S.A.
     Section 7341 et seq. This agreement to arbitrate disputes arising from this
     Agreement will survive settlement.

30.  BROKER INDEMNIFICATION (10-01)

     Buyer and Seller represent that the only Brokers involved in this
     transaction are:
     ___________________________________________________________________________
     and that the transaction has not been brought about through the efforts of
     anyone other than said Brokers. It is agreed that if any claims for
     brokerage commissions or fees are ever made against Buyer or Seller in
     connection with this transaction, each party shall pay its own legal fees
     and costs in connection with such claims. It is further agreed that Buyer
     and Seller agree to indemnify and hold harmless each other and the
     above-listed Brokers from and against the non-performance of this Agreement
     by either party, and from any claim of loss or claim for brokerage
     commissions, including all legal fees and costs, that may be made by any
     person or entity. This paragraph shall survive settlement.

31.  GOVERNING LAW (10-01)

     This agreement shall be construed and interpreted in accordance with the
     laws of the Commonwealth of Pennsylvania.

32.  NOTICE BEFORE SIGNING (5-01)

     Buyer and Seller acknowledge that Brokers have advised them to consult and
     retain experts concerning the legal and tax effects of this Agreement and
     the completion of the sale, as well as the condition and/or legality of the
     Property, including, but not limited to, the Property's improvements,
     equipment, soil, tenancies, tile and environmental aspects. Return by
     facsimile transmission (FAX) of this Agreement, and all addenda, bearing
     the signatures of all parties, constitutes acceptance of this Agreement.

33.  NOTICE

     All notice requirements under the provisions of this Agreement or by
     application of statutory or common law will be addressed to the appropriate
     party, at the addresses listed below via any means of delivery as mutually
     agreed upon by the parties and stated here:

     ---------------------------------------------------------------------------

     If to Seller:
                  --------------------------------------------------------------

     With a copy to:
                    ------------------------------------------------------------

     If to Buyer:
                 ---------------------------------------------------------------

     With a copy to:
                    ------------------------------------------------------------

       [X] BUYER HAS RECEIVED THE CONSUMER NOTICE AS ADOPTED BY THE STATE REAL
           ESTATE COMMISSION AT 49 PA. CODE SECTION 35.336.

       [X] BUYER HAS RECEIVED A STATEMENT OF BUYER'S ESTIMATED CLOSING COSTS
           BEFORE SIGNING THIS AGREEMENT.

       [X] BUYER HAS RECEIVED THE DEPOSIT MONEY NOTICE (FOR COOPERATE SALES
           WHEN BROKER FOR SELLER IS HOLDING DEPOSIT MONEY) BEFORE SIGNING THIS
           AGREEMENT.

BUYER ACKNOWLEDGES RECEIVING A COPY OF THIS AGREEMENT AT TIME OF SIGNING.

WITNESS /s/ JMM           BUYER /s/ STAN SMITH               DATE: 3/28/05
       -----------              ----------------------             -------------
                              Stan Smith and or assigns

E-Mail
       -------------------------------------------------------------------------

PREPARED BY: John O'Connell, Agent
Agreement For The Sale of Commercial Real Estate. 10/01. Pennsylvania
Association of REALTORS(R)
COPYRIGHT PENNSYLVANIA ASSOCIATION OF REALTORS(R) 2001
[ILLEGIBLE](R) Software (C)2005. Version 6.16. Software Registered to:
Dennis M. McCarthy, WEICHERT, REALTORS(R) - McCarthy Associates
                               03/29/05  14:11:14

                                                                Page 6 of 9

Buyer(s) /s/ SS                                             Seller(s)
        -----------                                                  ---------

<PAGE>
       [X] Seller has received the Consumer Notice as adopted by the State Real
           Estate Commission at 49 Pa. Code Section 35.336.

       [X] Seller has received a statement of Seller's estimated closing costs
           before signing this Agreement.

VOLUNTARY TRANSFER OF CORPORATE ASSETS (if applicable): The undersigned
acknowledges that he/she is authorized by the Board of Directors to sign this
Agreement on behalf of the Seller corporation and that this sale does not
constitute a sale, lease, or exchange of all or substantially all the property
and assets of the corporation, such as would require the authorization or
consent of the shareholders pursuant to 15 P.S. Section 1311.

SELLER'S ACCEPTANCE: Seller hereby accepts the above contract this (date)
                                                                          ------

WITNESS /s/ BONNIE RITCHIE          SELLER /s/ J. MALIS            DATE 4/21/05
        ------------------------           ------------------           --------

E-mail
      --------------------------------------------------------------------------

PREPARED BY: John O'Connell, Agent
Agreement For The Sale Of Commercial Real Estate. 10/01. Pennsylvania
Association of REALTORS(R)
COPYRIGHT PENNSYLVANIA ASSOCIATION OF REALTORS(R) 2001
[ILLEGIBLE](R) Software (C)2005. Version 6.16. Software Registered to:
Dennis M. McCarthy, WEICHERT, Realtors(R) - McCarthy Associates
                               03/29/05  14:11:44
                                                                Page 7 of 9

Buyer(s) /s/ SS                                             Seller(s)
        -----------                                                  ---------

<PAGE>
                            NOTICES AND INFORMATION

                      INFORMATION REGARDING TAX PRORATION

For purposes of prorating real estate taxes, the "periods covered" by the tax
bills are as follows: for all counties and municipalities in Pennsylvania, and
for the Philadelphia, Pittsburgh, and Scranton school districts, the tax bills
are for the period January 1 to December 31. For all other school districts,
the period covered by the tax bill is July 1 to June 30.

                                 SEWAGE NOTICES
           NOTICES PURSUANT TO THE PENNSYLVANIA SEWAGE FACILITIES ACT

NOTICE 1:  THERE IS NO CURRENTLY EXISTING COMMUNITY SEWAGE SYSTEM AVAILABLE
           FOR THE SUBJECT PROPERTY. Section 7 of the Pennsylvania Sewage
           Facilities Act provides that no person will install, construct,
           request bid proposals for construction, alter, repair or occupy any
           building or structure for which an individual sewage system is to be
           installed, without first obtaining a permit. Buyer is advised by this
           notice that, before signing this Agreement of Sale, Buyer should
           contact the local agency charged with administering the Act to
           determine the procedure and requirements for obtaining a permit for
           an individual sewage system. The local agency charged with
           administering the Act will be the municipality where the Property is
           located or that municipality working cooperatively with others.

NOTICE 2:  THIS PROPERTY IS SERVICED BY AN INDIVIDUAL SEWAGE SYSTEM INSTALLED
           UNDER THE TEN-ACRE PERMIT EXEMPTION PROVISIONS OF SECTION 7 OF THE
           PENNSYLVANIA SEWAGE FACILITIES ACT. (Section 7 provides that a permit
           may not be required before installing, constructing, awarding a
           contract for construction, altering, repairing or connecting to an
           individual sewage system where a ten-acre parcel or lot is subdivided
           from a parent tract after January 10, 1987. Buyer is advised that
           soil and site testing were not conducted and that, should the system
           malfunction, the owner of the Property or properties serviced by the
           system at the time of a malfunction may be held liable for any
           contamination, pollution, public health hazard or nuisance which
           occurs as a result.

NOTICE 3:  THIS PROPERTY IS SERVICED BY A HOLDING TANK (PERMANENT OR TEMPORARY)
           TO WHICH SEWAGE IS CONVEYED BY A WATER CARRYING SYSTEM AND WHICH IS
           DESIGNED AND CONSTRUCTED TO FACILITATE ULTIMATE DISPOSAL OF THE
           SEWAGE AT ANOTHER SITE. Pursuant to the Pennsylvania Sewage
           Facilities Act, Seller must provide a history of the annual cost of
           maintaining the tank from the date of its installation on December
           14, 1995, whichever is later.

NOTICE 4:  AN INDIVIDUAL SEWAGE SYSTEM HAS BEEN INSTALLED AT AN ISOLATION
           DISTANCE FROM A WELL THAT IS LESS THAN THE DISTANCE SPECIFIED BY
           REGULATION. The regulations at 25 Pa. Code Section 73.13 pertaining
           to minimum horizontal isolation distances provide guidance.
           Subsection (b) of Section 73.13 states that the minimum horizontal
           isolation distance between an individual water supply or water supply
           system suction line and treatment tanks shall be 50 feet. Subsection
           (c) of Section 73.13 states that the horizontal isolation distance
           between the individual water supply or water supply system suction
           line and the perimeter of the absorption area shall be 100 feet.

NOTICE 5:  THIS LOT IS WITHIN AN AREA IN WHICH PERMIT LIMITATIONS ARE IN EFFECT
           AND IS SUBJECT TO THOSE LIMITATIONS. SEWAGE FACILITIES ARE NOT
           AVAILABLE FOR THIS LOT AND CONSTRUCTION OF A STRUCTURE TO BE SERVED
           BY SEWAGE FACILITIES MAY NOT BEGIN UNTIL THE MUNICIPALITY COMPLETES A
           MAJOR PLANNING REQUIREMENT PURSUANT TO THE PENNSYLVANIA SEWAGE
           FACILITIES ACT AND REGULATIONS PROMULGATED THEREUNDER.

NOTICE 6:  A REQUIRED REVISION FOR NEW LAND DEVELOPMENT, OR AN EXCEPTION TO THE
           REQUIREMENT TO REVISE, OR A REQUIRED SUPPLEMENT HAS NOT BEEN APPROVED
           FOR THIS LOT. SEWAGE FACILITIES ARE NOT AVAILABLE FOR THIS LOT AND
           SEWAGE FACILITIES WILL NOT BE AVAILABLE, NOR MAY CONSTRUCTION BEGIN
           UNTIL SEWAGE FACILITIES PLANNING HAS BEEN APPROVED PURSUANT TO THE
           PENNSYLVANIA SEWAGE FACILITIES ACT AND REGULATIONS PROMULGATED
           THEREUNDER.

                        EXPERTISE OF REAL ESTATE AGENTS

Pennsylvania Real Estate Agents are required to be licensed by the Commonwealth
of Pennsylvania and are obligated to disclose adverse factors about a property
that are reasonably apparent to someone with expertise in the marketing of real
property.

(A) If Buyer wants information regarding specific conditions or components of
    the property which are outside the Agent's expertise, the advice of the
    appropriate professional should be sought.

(B) If Buyer wants financial, legal, or any other advice, Buyer is encouraged to
    seek the services of an accountant, lawyer, or other appropriate
    professional.

                    COMMUNICATIONS WITH BUYER AND/OR SELLER

PREPARED BY: John O'Connell, Agent
Agreement for the Sale Of Commercial Real Estate. 10/01. Pennsylvania
Association of REALTORS(R)
COPYRIGHT PENNSYLVANIA ASSOCIATION OF REALTORS(R) 2001
[ILLEGIBLE](R) Software (C)2005. Version 6.16 Software Registered to:
Dennis M. McCarthy, WEICHERT, REALTORS(R) - McCarthy Associates

                                                                     Page 8 of 9

Buyer(s) /s/ SS                                               Seller(s)
        -----------                                                    ---------

<PAGE>
Wherever this Agreement contains a provision that requires or allows
communication/delivery to the Buyer, said provision shall be satisfied by
communication/delivery to the Broker for Buyer, if any. If there is no Broker
for Buyer, all such provisions may be satisfied only by communication/delivery
being made directly to the Buyer, unless otherwise agreed to by the parties.

Wherever this Agreement contains a provision that requires or allows
communication/delivery to the Seller, said provision shall be satisfied by
communication/delivery to the Broker for Seller, if any. If there is no Broker
for Seller, all such provisions may be satisfied only by communication/delivery
being made directly to the Seller, unless otherwise agreed to by the parties.

PREPARED BY: John O'Connell, Agent
Agreement For The Sale Of Commercial Real Estate. 10/01. Pennsylvania
Association of REALTORS(R)
COPYRIGHT PENNSYLVANIA ASSOCIATION OF REALTORS(R) 2001
[ILLEGIBLE](R) Software (C)2005. Version 6.16 Software Registered to:
Dennis M. McCarthy, WEICHERT, Realtors(R) - McCarthy Associates

                                                                Page 9 of 9

Buyer(s) /s/ SS                                             Seller(s)
        -----------                                                  ---------

<PAGE>
ADDENDUM/ENDORSEMENT TO AGREEMENT OF SALE

                                                                     Form 102-4M

PROPERTY 4969 WAKEFIELD STREET
         -----------------------------------------------------------------------

SELLER   DIVERSIFIED ELECTRONICS, CO. INC.
         -----------------------------------------------------------------------

BUYER    STAN SMITH AND OR ASSIGNS
         -----------------------------------------------------------------------

DATE OF AGREEMENT MARCH 29, 2005
                  --------------------------------------------------------------

    AT THE OPTION OF SELLER, SELLER MAY POSTPONE THE CLOSING DATE BY THIRTY (30)
    DAYS, OR (") OCCUPY THE PROPERTY FOR A PERIOD OF UP TO 120 DAYS AFTER
    CLOSING AND PAY BUYER A MUTUALLY AGREEABLE RENT.

All other terms and cancellations of the said agreement shall remain unchanged
and in full force and effect.

WITNESS /s/                        BUYER /s/ STAN SMITH          DATE 4/21/05
        ------------------------         -----------------------      ----------
WITNESS                            BUYER                         DATE
        ------------------------         -----------------------      ----------
WITNESS                            BUYER                         DATE
        ------------------------         -----------------------      ----------
WITNESS /s/ SUE COLES             SELLER /s/ J. MALIS            DATE 4/21/05
        ------------------------         -----------------------      ----------
WITNESS                           SELLER                         DATE
        ------------------------         -----------------------      ----------
WITNESS                           SELLER                         DATE
        ------------------------         -----------------------      ----------

                          COPYRIGHT PENNSYLVANIA ASSOCIATION OF REALTORS(R) 1993

(LOGO PENNSYLVANIA ASSOCIATION OF REALTORS(R))

                                 SELLER'S COPY

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