<ARTICLE> 5
       
                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1996
<PERIOD-START>                             JAN-01-1996
<PERIOD-END>                               JUN-30-1996
<CASH>                                       1,783,621
<SECURITIES>                                         0
<RECEIVABLES>                                  160,789
<ALLOWANCES>                                         0
<INVENTORY>                                          0
<CURRENT-ASSETS>                             1,944,410
<PP&E>                                       5,509,487
<DEPRECIATION>                               3,986,262
<TOTAL-ASSETS>                               3,467,635
<CURRENT-LIABILITIES>                          212,086
<BONDS>                                        545,519
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                             0
<OTHER-SE>                                   2,710,030
<TOTAL-LIABILITY-AND-EQUITY>                 3,467,635
<SALES>                                              0
<TOTAL-REVENUES>                               906,870
<CGS>                                                0
<TOTAL-COSTS>                                        0
<OTHER-EXPENSES>                               477,658
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                              36,000
<INCOME-PRETAX>                                429,212
<INCOME-TAX>                                         0
<INCOME-CONTINUING>                            429,212
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                   429,212
<EPS-PRIMARY>                                        0
<EPS-DILUTED>                                        0