Document:

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                                                                     EXHIBIT 4.2

                        SPECIMEN COMMON STOCK CERTIFICATE

NUMBER                                                                    SHARES
_____c

                        NAVITAS INTERNATIONAL CORPORATION

              INCORPORATED UNDER THE LAWS OF THE STATE OF DELAWARE

                                  COMMON STOCK

                                                                 SEE REVERSE FOR
                                                             CERTAIN DEFINITIONS

THIS CERTIFIES THAT                                              CUSIP

IS THE OWNER OF

            FULLY PAID AND NON-ASSESSABLE SHARES OF THE PAR VALUE OF
                       $.0001 EACH OF THE COMMON STOCK OF

                        NAVITAS INTERNATIONAL CORPORATION

  transferable on the books of the Corporation in person or by duly authorized
       attorney upon surrender of this certificate properly endorsed. This
          certificate is not valid unless countersigned by the Transfer
           Agent and registered by the Registrar. Witness the seal of
                 the Corporation and the facsimile signatures of
                          its duly authorized officers

Dated:

-------------------------------------   ----------------------------------------
 Chief Executive Officer                 Secretary

                        NAVITAS INTERNATIONAL CORPORATION
                                    CORPORATE
                                    SEAL 2005
                                    DELAWARE

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     The following abbreviations, when used in the inscription on the face of
this certificate, shall be construed as though they were written out in full
according to applicable laws or regulations:

     TEN COM -- as tenants in common

     TEN ENT -- as tenants by the entireties

     JT TEN -- as joint tenants with right of survivorship and not as tenants in
common

UNIF GIFT MIN ACT - _____________ Custodian ______________
                       (Cust)                   (Minor)
                    under Uniform Gifts to Minors Act

                    ____________________________________
                                    (State)

Additional Abbreviations may also be used though not in the above list.

                        NAVITAS INTERNATIONAL CORPORATION

     The Corporation will furnish without charge to each stockholder who so
requests the powers, designations, preferences and relative, participating,
optional or other special rights of each class of stock or series thereof of the
Corporation and the qualifications, limitations or restrictions of such
preferences and/or rights. This certificate and the shares represented thereby
are issued and shall be held subject to all the provisions of the Certificate of
Incorporation and all amendments thereto and resolutions of the Board of
Directors providing for the issue of shares of Preferred Stock (copies of which
may be obtained from the secretary of the Corporation), to all of which the
holder of this certificate by acceptance hereof assents.

     For value received, ______________________ hereby sell, assign and transfer
unto

PLEASE INSERT SOCIAL SECURITY OR
           OTHER
IDENTIFYING NUMBER OF ASSIGNEE

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 (PLEASE PRINT OR TYPEWRITE NAME AND ADDRESS, INCLUDING ZIP CODE, OR ASSIGNEE)

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                                                                          shares
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the capital stock represented by the within Certificate, and do hereby
irrevocably constitute and appoint
                                                                        Attorney
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to transfer the said stock on the books of the within named Corporation
with full power of substitution in the premises.

Dated
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                                     NOTICE: The signature to this assignment
                                             must correspond with the name as
                                             written upon the face of the
                                             certificate in every particular,
                                             without alteration or enlargement
                                             or any change whatever.

Signature(s) Guaranteed:

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THE SIGNATURE(S) SHOULD BE GUARANTEED BY AN ELIGIBLE GUARANTOR INSTITUTION
(BANKS, STOCKBROKERS, SAVINGS AND LOAN ASSOCIATIONS AND CREDIT UNIONS WITH
MEMBERSHIP IN AN APPROVED SIGNATURE GUARANTEE MEDALLION PROGRAM, PURSUANT TO
S.E.C. RULE 17Ad-15).

The holder of this certificate shall be entitled to receive funds from the trust
fund only in the event of the Company's liquidation or if the holder seeks to
convert his respective shares into cash upon a business combination which he
voted against and which is actually completed by the Company. In no other
circumstances shall the holder have any right or interest of any kind in or to
the trust fund.<PAGE>
                                                                     EXHIBIT 4.3

                          SPECIMEN WARRANT CERTIFICATE

NUMBER                                                                  WARRANTS

 -----

                          (SEE REVERSE SIDE FOR LEGEND)
         (THIS WARRANT WILL BE VOID IF NOT EXERCISED PRIOR TO 5:00 P.M.
                     NEW YORK CITY TIME, _____________, 2010

                        NAVITAS INTERNATIONAL CORPORATION

                                                                   CUSIP

                                     WARRANT

THIS CERTIFIES THAT, for value received _____________________,

is the registered holder of a Warrant or Warrants expiring ___________, 2010
(the "Warrant") to purchase one fully paid and non-assessable share of Common
Stock, par value $.0001 per share ("Shares"), of NAVITAS INTERNATIONAL
CORPORATION, a Delaware corporation (the "Company"), for each Warrant evidenced
by this Warrant Certificate. The Warrant entitles the holder thereof to purchase
from the Company, commencing on the later of (i) the Company's completion of a
Business Combination (as defined in the Warrant Agreement) with a target
business or (ii) __________, 2007, such number of Shares of the Company at the
price of $5.00 per share, upon surrender of this Warrant Certificate and payment
of the Warrant Price at the office or agency of the Warrant Agent, Continental
Stock Transfer & Trust Company (such payment to be made by check made payable to
the Warrant Agent), but only subject to the conditions set forth herein and in
the Warrant Agreement between the Company and Continental Stock Transfer & Trust
Company. The Warrant Agreement provides that upon the occurrence of certain
events the Warrant Price and the number of Warrant Shares purchasable hereunder,
set forth on the face hereof, may, subject to certain conditions, be adjusted.
The term Warrant Price as used in this Warrant Certificate refers to the price
per share at which Shares may be purchased at the time the Warrant is exercised.

     No fraction of a Share will be issued upon any exercise of a Warrant. If,
upon exercise of a Warrant, a holder would be entitled to receive a fractional
interest in a Share, the Company will, upon exercise, round up to the nearest
whole number the number of shares of common stock to be issued to the warrant
holder.

     Upon any exercise of the Warrant for less than the total number of full
Shares provided for herein, there shall be issued to the registered holder
hereof or his assignee a new Warrant Certificate covering the number of Shares
for which the Warrant has not been exercised.

     Warrant Certificates, when surrendered at the office or agency of the
Warrant Agent by the registered holder hereof in person or by an attorney duly
authorized in writing, may be exchanged in the manner and subject to the
limitations provided in the Warrant Agreement, but without payment of any
service charge, for another Warrant Certificate or Warrant Certificates of like
tenor and evidencing in the aggregate a like number of Warrants.

     Upon due presentment for registration of transfer of the Warrant
Certificate at the office or agency of the Warrant Agent, a new Warrant
Certificate or Warrant Certificates of like tenor and evidencing in the
aggregate a like number of Warrants shall be issued to the transferee in
exchange for this Warrant Certificate, subject to the limitations provided in
the Warrant Agreement, without charge except for any applicable tax or other
governmental charge.

     The Company and the Warrant Agent may deem and treat the registered holder
as the absolute owner of this Warrant Certificate (notwithstanding any notation
of ownership or other writing hereon made by anyone), for

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the purpose of any exercise hereof, of any distribution to the registered
holder, and for all other purposes, and neither the Company nor the Warrant
Agent shall be affected by any notice to the contrary.

     This Warrant does not entitle the registered holder to any of the rights of
a stockholder of the Company.

     The Company reserves the right to call the Warrant in whole and not in part
at any time prior to its exercise, with a notice of call in writing to the
holders of record of the Warrant, giving 30 days' notice of such call at any
time after the Warrant becomes exercisable if the last sale price of the Shares
has been at least $8.50 per share on each of 20 trading days within a 30 trading
day period ending on the third business day prior to the date on which notice of
such call is given. The call price of the Warrants is to be $.01 per Warrant.
Any Warrant either not exercised or tendered back to the Company by the end of
the date specified in the notice of call shall be canceled on the books of the
Company and have no further value except for the $.01 call price.

By                                          By
   ---------------------------------------     ---------------------------------
   Chief Executive Officer                     Secretary

<PAGE>

                                SUBSCRIPTION FORM
      To Be Executed by the Registered Holder in Order to Exercise Warrants

The undersigned Registered Holder irrevocably elects to exercise ________
Warrants represented by this Warrant Certificate, and to purchase the shares of
Common Stock issuable upon the exercise of such Warrants, and requests that
Certificates for such shares shall be issued in the name of

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                     (PLEASE TYPE OR PRINT NAME AND ADDRESS)

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                 (SOCIAL SECURITY OR TAX IDENTIFICATION NUMBER)

and be delivered to
                     -----------------------------------------------------------
                              (PLEASE PRINT OR TYPE NAME AND ADDRESS)

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and, if such number of Warrants shall not be all the Warrants evidenced by this
Warrant Certificate, that a new Warrant Certificate for the balance of such
Warrants be registered in the name of, and delivered to, the Registered Holder
at the address stated below:

Dated:
      -----------------------           ----------------------------------------
                                         (SIGNATURE)

                                        ----------------------------------------
                                         (ADDRESS)

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

                                        ----------------------------------------
                                         (TAX IDENTIFICATION NUMBER)

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                                   ASSIGNMENT

       To Be Executed by the Registered Holder in Order to Assign Warrants

For Value Received,                                              hereby sells,
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assigns, and transfers unto

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                     (PLEASE TYPE OR PRINT NAME AND ADDRESS)

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                 (SOCIAL SECURITY OR TAX IDENTIFICATION NUMBER)

and be delivered to
                     -----------------------------------------------------------
                           (PLEASE PRINT OR TYPE NAME AND ADDRESS)

                                                of the Warrants represented by
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this Warrant Certificate, and hereby irrevocably constitutes and appoints

Attorney to transfer this Warrant Certificate on the books of the Company, with
full power of substitution in the premises.

Dated:
         ---------------------------      --------------------------------------
                                          (SIGNATURE)

THE SIGNATURE TO THE ASSIGNMENT OF THE SUBSCRIPTION FORM MUST CORRESPOND TO THE
NAME WRITTEN UPON THE FACE OF THIS WARRANT CERTIFICATE IN EVERY PARTICULAR,
WITHOUT ALTERATION OR ENLARGEMENT OR ANY CHANGE WHATSOEVER, AND MUST BE
GUARANTEED BY A COMMERCIAL BANK OR TRUST COMPANY OR A MEMBER FIRM OF THE
AMERICAN STOCK EXCHANGE, NEW YORK STOCK EXCHANGE, PACIFIC STOCK EXCHANGE OR
CHICAGO STOCK EXCHANGE.

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