<PAGE>
                                                                 EXHIBIT 10.10.6



                                    ARTICLES
                                    --------
                                       OF
                                       --
                                   AMENDMENT
                                   ---------

                    ARTICLES OF AMENDMENT dated this 7th day of June, 1973, by
          and between VEGAS LODGE NO. 32, FREE AND ACCEPTED MASONS, herein
          called "Lessor" and FREDERIC W. RICHMAN and THE PULLIAM COMPANY, A
          partnership, d/b/a THE NEVADA BUILDING COMPANY, herein called
          "Assignee/Lessee".

                                  WITNESSETH:
                                  -----------

                    WHEREAS, H. JOHN GLUSKIN is the Lessee under the terms of
          that certain Lease Agreement by and between VEGAS LODGE NO. 32, FREE
          AND ACCEPTED MASONS, as Lessor, dated the 21st day of July, 1954,
          under the terms of which the Lessor has leased unto the Lessee the
          real property situated in the City of Las Vegas, Clark County, Nevada,
          described as follows:

                    Lots 1, 2, 3, and 4 of Block 30, Clarks Las Vegas Townsite,
                    as recorded in Book 1 of Plats, Page 37, in the Office of
                    County Recorder for Clark County, Nevada.

                    Together with all and singular buildings and improvements
                    thereon situated and the tenements, hereditaments and
                    appurtenances, thereunto belonging or in anywise
                    appertaining; and

                    WHEREAS, H. JOHN GLUSKIN is the Lessee under the terms of
          that certain Amendment to Lease Agreement dated the 24th day of July,
          1954, which amended that certain Lease Agreement dated the 21st day of
          July, 1954, by and between VEGAS LODGE NO. 32, FREE AND ACCEPTED
          MASONS, as Lessor, and H. JOHN GLUSKIN as Lessee; and


                              EXHIBIT "C" PAGE 46



                                      -1-
<PAGE>

                    WHEREAS, HY GOLDFELD, acting for and on behalf of H. JOHN
          GLUSKIN by and through a power of attorney from H. JOHN GLUSKIN to HY
          GOLDFELD dated the 26th day of July, 1954, did assign to DAVID
          GOLDWATER all the right, title and interest of H. JOHN GLUSKIN in and
          to that certain Lease Agreement dated the 21st day of July, 1954, and
          that certain Amendment to the Lease Agreement dated the 24th day of
          July, 1954, wherein H. JOHN GLUSKIN is the Lessee and the VEGAS LODGE
          NO. 32, FREE AND ACCEPTED MASONS of Las Vegas, Nevada is the Lessor,
          providing for the leasing from the Lessor to the Lessee the real
          property hereinbefore described and

                    WHEREAS, DAVID GOLDWATER, as Assignee/Lessee of H. JOHN
          GLUSKIN under the terms of the Lease Agreement and Amendment to Lease
          Agreement hereinbefore described, on the 14th day of October, 1954,
          execute a Supplemental Agreement amending said Lease Agreement dated
          July 21, 1954, wherein H. JOHN GLUSKIN, is the Lessee and the VEGAS
          LODGE NO. 32, FREE AND ACCEPTED MASONS of Las Vegas, Nevada is the
          Lessor, and

                    WHEREAS, DAVID GOLDWATER, as Assignee/Lessee of H. JOHN
          GLUSKIN did assign to THREE-0-ONE CORPORATION, a Nevada Corporation,
          all right, title and interest of DAVID GOLDWATER in and to that
          certain Lease Agreement dated the 21st day of July, 1954, and that
          certain Amendment to Lease Agreement dated the 24th day of July, 1954,
          and that certain Supplemental Agreement dated the 14th day of October,
          1954, by and between the parties as hereinabove described, and

                    WHEREAS, THREE-0-ONE CORPORATION, a Nevada corporation, did
          assign to FREDERIC W. RICHMAN AND THE PULLIAM COMPANY, a partnership,
          d/b/a NEVADA BUILDING COMPANY all right, title and interest of
          THREE-0-ONE CORPORATION in and to that certain Lease Agreement dated
          the 21st day of July, 1954, and that certain



                              EXHIBIT "C" PAGE 47


                                      -2-
<PAGE>


          Amendment to Lease Agreement dated the 24th day of July, 1954, and
          that certain Supplemental Agreement dated the 14th day of October,
          1954, by and between the parties as hereinabove described; and

                    WHEREAS, Lessor and Assignee/Lessee mutually desire to
          further amend certain portions of the Lease Agreement, as amended, as
          aforesaid;

                    NOW, THEREFORE, in consideration of the mutual covenants
          herein contained, the parties agree as follows:

                    1. The term of said Lease Agreement, as amended, is hereby
          amended to provide for an expiration date of July 31, 2038, A.D.

                    2(a)Assignee/Lessee shall have the right to demolish, wreck,
          or remodel the building located upon said Lessor premises and
          thereafter construct a new or remodeled fireproof building of not less
          than two stories. Said new or remodeled building shall conform to
          plans and specifications prepared by a licensed architect and shall be
          in accordance with all local or state zoning ordinances. It is further
          understood that if Assignee/Lessee demolishes, wrecks or remodels said
          building, that the aforesaid new or remodeled building will be a hotel
          and/or gaming casino on said premises provided that same shall be in
          accordance with applicable laws. Within the hotel and/or gaming
          casino, Assignee/Lessee shall have the right to operate any type of
          gaming sanctioned by the laws of the State of Nevada.

                    (b) Before Assignee/Lessee shall commence to wreck the
          building now upon said premises, and before Assignee/Lessee shall
          commence to construct said new building, Assignee/Lessee will execute
          and deliver to Lessor an indemnity bond in a sum equal to the
          architect's estimate of the cost of wrecking the building and the
          completion of a new building which bond shall be executed by
          Assignee/Lessee as principal, and by a responsible surety company


                              EXHIBIT "C" PAGE 48

                                      -3-


<PAGE>

          authorized to do business in the State of Nevada as surety or by other
          surety or sureties satisfactory to Lessor. Said bond shall be
          conditioned for performance by the Assignee/Lessee of all agreements
          contained in the Lease and these Articles of Amendment, said bond to
          be discharged by Lessor upon the completion of said wrecking work and
          erection of said new building, free and clear of all liens and the
          expiration of the time within which liens therefor could be asserted.

                    (c) In the wrecking of said buildings and in the
          construction of a new building, said Assignee/Lessee will fully
          protect Lessor against any Lien or rights to liens and from any claims
          of contractors, subcontractors, mechanics, laborers, materialmen or
          any other persons and any and all other liens or claims of lien by
          reason of the wrecking of said building or construction of a new
          building and Assignee/Lessee agrees to save Lessor harmless from and
          hereby indemnifies Lessor against any and all injury and loss which
          Lessor may suffer by reason of any such lien, right or claim,
          including attorney's fees, court costs and expenses.

                    (d) Further, Assignee/Lessee shall be bound by all of the
          terms, covenants, conditions and requirements of the original Lease
          Agreement of July 21, 1954, as amended, and except as otherwise
          amended herein, regarding destruction of buildings and construction of
          buildings, including but not limited to the provisions regarding
          approval by Lessee and Lessor's architect, who must be an ATA
          Architect, or approved equal, bonds, insurance, lien protection,
          filing notice on non-responsibility, details of construction, and all
          other applicable provision.

                    3. Paragraph II of said Lease Agreement, as amended, shall,
          and the same is hereby amended to read as follows:

                                       II

                    Assignee/Lessee agrees to pay to Lessor as rental for said
          premises the following sums and amounts and in the manner following,
          to wit:


                              EXHIBIT "C" PAGE 49
<PAGE>

                    An annual rental of Twenty-Five Thousand Dollars
          ($25,000.00) in lawful money of the United States per year shall be
          paid to July 31, 1976. Effective August 1, 1976, the annual rental
          shall be Fifty Thousand Dollars ($50,000.00) per year for each of the
          remaining years of the term hereof, subject, however, to the following
          conditions:

                    (a) Assignee/Lessee and Lessor agree that for each year
          subsequent to the August 1, 1976 wherein annual rental shall be
          $50,000.00 per year, the rent payable pursuant to this Paragraph II
          shall be fixed at Fifty Thousand Dollars ($50,000.00) per year but
          shall be adjusted upwards based upon changes in the Consumer Price
          Index calculated by the Bureau of Labor Statistics of the United
          States Department of Labor.

                    Annual rental of $50,000.00 shall be the "Base Rental" for
          the calculation of said adjustment and the month before the date said
          $50,000.00 base rental commences shall be the base rental date for
          determining the extent of said increase and consequent adjustment. A
          proportionate adjustment will be made each five years to the base
          rental in direct relationship to any increase in the aforesaid
          Consumer Price Index, said increase to be in effect for each of the
          five years after computation.

                    The adjusted rental shall be determined by dividing the base
          rental by the index number for the month preceding the month that the
          $50,000.00 base rental becomes effective, then multiplying the result
          by the index number of the month preceding the specified five years
          adjustment date. If the base period or Index numbering base of the
          Bureau of Labor Statistics shall change, the index numbers shall be
          adjusted to reflect the actual proportionate or percentage increase.

                    (b) In the event Assignee/Lessee shall open to the public a
          hotel and/or gaming casino of any kind on the demised premises, the
          annual rental for the years succeeding the opening of the said


                              EXHIBIT "C" PAGE 50

                                      -5-
<PAGE>

          casino shall be Seventy-Five Thousand Dollars ($75,000.00) per year
          for a period of Five (5) years plus the rental for the balance of the
          rental year of opening shall be pro-rated at the $75,000.00 rate.

                    (c) In the event the conditions occur as hereinabove set
          forth in said sub-paragraph (b), the annual rental for the years
          commencing after the five (5) period specified in sub-paragraph II,
          (b) above shall be One Hundred Thousand Dollars ($100,000.00) per
          year, for the succeeding five-year period; the annual rental shall be
          One Hundred Twenty-Five Thousand Dollars ($125,000.00) per year, for
          the next succeeding five-year period; the annual rental shall be One
          Hundred Fifty Thousand Dollars ($150,000.00) per year, for the next
          succeeding five-year period.

                    Assignee/Lessee and Lessor agree that for each year
          subsequent to the five year period wherein annual rental shall be
          $150,000.00 per year, the rent payable pursuant to this Paragraph II
          shall be fixed at a base rental of One Hundred Fifty Thousand Dollars
          ($150,000.00) per year, and further, shall be adjusted upwards at that
          time and thereafter based upon changes in the Consumer Price Index
          calculated by the Bureau of Labor Statistics of the United States
          Department of Labor.

                    Annual rental of $150,000.00 shall be the "Base Rental" for
          the calculation of said adjustment and the month before the date said
          $150,000.00 base rental commences shall be the base rental date for
          determining the extent of said increase and consequent adjustment. A
          proportionate adjustment will be made each five years to the base
          rental in direct relationship to any increase in the aforesaid
          Consumer Price Index, said increase to be in effect for each of the
          five years after computation.

                    The adjusted rental shall be determined by dividing the base
          rental by the index number for the month preceding the month that the
          $150,000.00 base rental becomes effective, then multiplying the result
          by the index number for the month preceding the specified five year
          adjustment date. If the base period or Index numbering base of the
          Bureau of Labor Statistics shall change, the


                                      -6-
                              EXHIBIT "C" PAGE 51
<PAGE>

          index numbers shall be adjusted to reflect the actual proportionate or
          percentage increase.

                    (d) In no event shall the rental ever be decreased below
          that paid the preceding year.

                    (e) Should a hotel and/or gaming casino of any kind be
          opened by Assignee/Lessee on the demised premises on or after August
          1, 1976, the rental for the years succeeding the opening shall be
          computed as though said hotel and/or gaming casino of any kind had
          opened July 31, 1976. The rental for the balance of the rental year
          following opening shall be pro-rated at the rate that would have been
          in effect if the Hotel and/or gaming casino of any kind had opened
          July 31, 1976.

                    4. In the event Assignee/Lessee does not erect a hotel
          and/or gaming casino on said premises but decides to construct a
          building not containing hotel rooms and/or a gaming casino, then the
          Lessor and Assignee/Lessee agree that the parties shall meet and shall
          attempt to renegotiate the terms of rental. It is further understood
          that wrecking and construction shall not commence until a rental,
          satisfactory to Lessor, is established.

                    5. In the event Assignee/Lessee opens a hotel and/or gaming
          casino of any kind on the demised premises, then Paragraph III,
          sub-paragraph (j) of said Lease Agreement, as amended, is amended, to
          provide as follows:

                    (j) That Lessee will save harmless and indemnify the Lessor
          from and against all loss, liability, or expense that may be incurred
          by reason of any accident occurring on said premises, and from
          damages, neglect or misadventure arising from or in any way growing
          out of the use, misuse or abuse of the city water, plumbing, electric
          current, gas mine, or any obstructions on or adjacent to said premises
          and property, nor will said Lessee make or suffer an unlawful use of
          the premises, or any use or application thereof contrary to any
          ordinance of the City of Las Vegas,



                              EXHIBIT "C" PAGE 52

                                      -7-
<PAGE>


          or any law of the State of Nevada, or of the United States of America,
          or which shall be injurious to any person or property of any persons
          using or occupying said premises as an employee or guest of said
          Lessee.

                    6. It is further understood and agreed by and between the
          parties hereto that the terms and conditions of this Agreement and of
          the Lease Agreement, as amended, shall extend to and be binding upon
          the successors and assigns of Lessor and also upon the heirs,
          executors, successors and assigns of Assignee/Lessee.

                    7. The parties hereto agree that the XXX Articles of
          Amendment may at the option of either party be duly recorded in the
          Recorders Office of Clark County of Nevada.

                    IN WITNESS WHEREOF, Lessor, acting by and through its duly
          authorized trustees, and Assignee/Lessee have executed this Agreement
          in duplicate, each copy of which is deemed to be and is an original.

                                        LESSOR:

                                        VEGAS LODGE NO. 32
                                        FREE AND ACCEPTED MASONS OF
                                        Las Vegas, Clark County, Nevada

                                        s/s WILBER H. HANDLEY
                                        --------------------------------------
                                            Wilber H. Handley, Trustee

                                        s/s ORAL H. STOUT
                                        --------------------------------------
                                            Oral H. Stout,    Trustee

                                        s/s ARTHUR DELAPLANE
                                        --------------------------------------
                                            Arthur Delaplane  Trustee
ASSIGNEE/LESSEE

NEVADA BUILDING COMPANY A PARTNERSHIP

s/s FREDERIC W. RICHMAN
---------------------------------------
    Frederic W. Richman

THE PULLIAM COMPANY

s/s J.D. PULLIAM
---------------------------------------
    J.D. Pulliam, President


                                      -8-

                              EXHIBIT "C" PAGE 53

<PAGE>

          STATE OF NEVADA  )
                           ) SS:
          COUNTY OF CLARK  )


                    On this 7th day of June, A.D., 1973, personally appeared
          before me, a Notary Public in and for Clark County, WILBER H. HANDLEY,
          ORAL H. STOUT, AND ARTHUR DELEPLANE, known to me to be all of the
          Trustees of the VEGAS LODGE NO. 32, FREE AND ACCEPTED MASONS, of Las
          Vegas, Clark County, Nevada, the corporation that executed the
          foregoing ARTICLES OF AMENDMENT TO LEASE AGREMENT as Party of the
          First Part and Lessor, and upon oath did depose that they are the
          trustees of said corporation as above designated; that they are
          acquainted with the seal of said corporation, and that the seal
          affixed to said instrument is the corporate seal of said corporation;
          that the signatures to said instrument were made by Trustees of said
          corporation as indicated after said signatures; and that the said
          corporation executed the said instrument freely and voluntarily and
          for the uses and purposes therein mentioned.

                    IN WITNESS WHEREOF, I have hereunto set my hand and affixed
          my notarial seal in Las Vegas, Clark County, Nevada, the day and year
          in this certificate first above written.

                                       s/s CLYDE O SPITZE
                                           -------------------------------------
          SEAL AFFIXED                     Notary Public as Aforesaid
                                           My Commission Expires April 18, 1974

          STATE OF NEVADA  )
                           ) SS:
          COUNTY OF CLARK  )

                    On this 18th day of June, 1973, personally appeared before
          me, a Notary Public in and for Clark County, State of Nevada, FREDERIC
          W. RICHMAN, known to me as the Assignee/Lessee under the Lease and
          who executed the foregoing ARTICLES OF AMENDMENT TO LEASE AGREEMENT,
          and upon oath did depose and duly acknowledge to me that he executed
          the above instrument freely and voluntarily and for the uses and
          purposes therein mentioned.

                    IN WITNESS WHEREOF, I have hereunto set my hand and affixed
          my official seal in Las Vegas, Clark County, Nevada, the day and year
          in this certificate first above written.

          SEAL AFFIXED               s/s HELEN XXX HANSON
                                        ----------------------------------------
                                        Notary Public in and for said County and
                                        State
                                        My Commission Expires June 14, 1976




                              EXHIBIT "C" PAGE 54

                                      -9-

<PAGE>

          STATE OF NEVADA  )
                           ) SS:
          COUNTY OF CLARK  )

                    On this 7th day of June, 1973, personally appeared before
          me, a Notary Public in and for said County and State, J.D. PULLIAM,
          known to me to be the President of the corporation that executed the
          foregoing ARTICLES OF AMENDMENT TO LEASE AGREEMENT, and upon oath did
          depose and say that he is the officer of said corporation and that the
          seal affixed to said instruments is the corporate seal of said
          corporation that the signature to said instruments was made by the
          officer of said  as indicated after said signature and that the said
          corporation executed the said instruments freely and voluntarily and
          for the uses and purposes mentioned therein.

                    IN WITNESS WHEREOF, I have hereunto set my hand and affixed
          my official seal in Las Vegas, Clark County, Nevada, the day and year
          in this certificate first above written.

                                     s/s CLYDE O SPITZE
                                        ----------------------------------------
                                        Notary Public In and For Said County and
          SEAL AFFIXED                  State
                                        My Commission Expires April 18, 1974

          RETURN TO:

          VEGAS LODGE NO. 32
          FLAM
          215 SO. THIRD ST.             INST. NO 297840
          LAS VEGAS, NV 89101           OFFICIAL RECORD BOOK NO. 338
                                        RECORDED AT REQUEST OF
                                        VEGAS LODGE NO. 32 FLAM
                                        JUN 19 1:31pm '73
                                        CLARK COUNTY, NEVADA
                                        PAUL E. XXX, RECORDER


                                        CERTIFIED TO BE A TRUE AND
                                        CORRECT COPY OF THE ORIGINAL
                                        NEVADA SOUTHERN TITLE, INC.
                                        BY /s/ XXX
                                          --------------------------

                              EXHIBIT "C" PAGE 55

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<PAGE>

                              A S S I G N M E N T
                              -------------------

                    For value received, THE PULLIAM COMPANY, a Nevada
          Corporation, hereby sells, assigns and transfers to FREDERIC N.
          RICHMAN, d/b/a THE NEVADA BUILDING COMPANY all its right, title and
          interest in the Nevada Building Company and its leasehold in the real
          property commonly known as 301 Fremont Street, Las Vegas, Nevada.


          Dated: Sept. 1, 1973

                                       THE PULLIAM CEMENT

                                       By s/s J.D. Pulliam, President
                                             -------------------------------
                                              J.D. Pulliam

                                       By s/s Henry Silvestri, Secretary
                                             -------------------------------
                                              Henry Silvestri

          When Recorded Please return to:

          Frederic N. Richman
          United California Bank Building
          9601 Wilshire Blvd., Suite 632
          Beverly Hills, California 90210

                                        INST. NO. 328190
                                                 ----------------------
                                        OFFICIAL RECORD BOOK NO. 369
                                        RECORDED AT REQUEST OF
                                        NEVADA SOUTHERN TITLE, INC.
                                        October 1 3:24pm '73
                                        CLARK COUNTY NEVADA
                                        PAUL E. XXX RECORDER



                                             CERTIFIED TO BE A TRUE AND
                                             CORRECT COPY OF THE ORIGINAL
                                             NEVADA SOUTHERN TITLE, INC.

                                             By /s/ XXX
                                               ---------------------------


                              EXHIBIT "C" PAGE 56

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