<ARTICLE> 5
       
                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-START>                             JAN-01-1997
<PERIOD-END>                               JUN-30-1997
<CASH>                                         371,577
<SECURITIES>                                         0
<RECEIVABLES>                                   66,224
<ALLOWANCES>                                         0
<INVENTORY>                                     16,540
<CURRENT-ASSETS>                               496,536
<PP&E>                                       3,333,730
<DEPRECIATION>                               3,682,730
<TOTAL-ASSETS>                               3,870,266
<CURRENT-LIABILITIES>                        1,008,770
<BONDS>                                              0
<COMMON>                                             0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<OTHER-SE>                                   2,861,496
<TOTAL-LIABILITY-AND-EQUITY>                 3,870,266
<SALES>                                      1,073,777
<TOTAL-REVENUES>                             1,073,777
<CGS>                                                0
<TOTAL-COSTS>                                  881,696
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                              17,478
<INCOME-PRETAX>                                192,081
<INCOME-TAX>                                         0
<INCOME-CONTINUING>                            192,081
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                   192,081
<EPS-PRIMARY>                                    42.68
<EPS-DILUTED>                                     0.00