<ARTICLE> 5
       
                             
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          DEC-31-1996
<PERIOD-END>                               DEC-31-1996
<CASH>                                         269,628
<SECURITIES>                                         0
<RECEIVABLES>                                  132,187
<ALLOWANCES>                                     5,082
<INVENTORY>                                          0
<CURRENT-ASSETS>                                     0
<PP&E>                                       3,550,990
<DEPRECIATION>                             (3,427,418)
<TOTAL-ASSETS>                                 523,019
<CURRENT-LIABILITIES>                                0
<BONDS>                                              0
<COMMON>                                             0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<OTHER-SE>                                     485,542
<TOTAL-LIABILITY-AND-EQUITY>                   523,019
<SALES>                                              0
<TOTAL-REVENUES>                               487,226
<CGS>                                                0
<TOTAL-COSTS>                                  514,251
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                   0
<INCOME-PRETAX>                                238,083
<INCOME-TAX>                                         0
<INCOME-CONTINUING>                            238,083
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                   238,083
<EPS-PRIMARY>                                        0
<EPS-DILUTED>                                        0