<ARTICLE> 5
       
                             
<PERIOD-TYPE>                   9-MOS
<FISCAL-YEAR-END>                          DEC-31-1996
<PERIOD-END>                               SEP-30-1996
<CASH>                                         120,210
<SECURITIES>                                         0
<RECEIVABLES>                                   69,318
<ALLOWANCES>                                     7,973
<INVENTORY>                                          0
<CURRENT-ASSETS>                                     0
<PP&E>                                       3,563,112
<DEPRECIATION>                               3,139,998
<TOTAL-ASSETS>                                 646,332
<CURRENT-LIABILITIES>                                0
<BONDS>                                              0
<COMMON>                                             0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<OTHER-SE>                                     617,075
<TOTAL-LIABILITY-AND-EQUITY>                   646,332
<SALES>                                              0
<TOTAL-REVENUES>                               304,152
<CGS>                                                0
<TOTAL-COSTS>                                  386,827
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                   0
<INCOME-PRETAX>                                 28,572
<INCOME-TAX>                                         0
<INCOME-CONTINUING>                             28,572
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                    28,572
<EPS-PRIMARY>                                        0
<EPS-DILUTED>                                        0