<ARTICLE> 5
       
                             
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-END>                               DEC-31-1997
<CASH>                                         191,228
<SECURITIES>                                         0
<RECEIVABLES>                                   28,857
<ALLOWANCES>                                   (3,227)
<INVENTORY>                                          0
<CURRENT-ASSETS>                                     0
<PP&E>                                       1,295,164
<DEPRECIATION>                             (1,291,640)
<TOTAL-ASSETS>                                 221,295
<CURRENT-LIABILITIES>                                0
<BONDS>                                              0
<COMMON>                                             0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<OTHER-SE>                                     204,341
<TOTAL-LIABILITY-AND-EQUITY>                   221,295
<SALES>                                              0
<TOTAL-REVENUES>                               670,068
<CGS>                                                0
<TOTAL-COSTS>                                        0
<OTHER-EXPENSES>                               386,221
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                   0
<INCOME-PRETAX>                                343,294
<INCOME-TAX>                                         0
<INCOME-CONTINUING>                            343,294
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                   343,294
<EPS-PRIMARY>                                     5.73
<EPS-DILUTED>                                     5.73