<ARTICLE> 5 <PERIOD-TYPE> 3-MOS <FISCAL-YEAR-END> DEC-31-1995 <PERIOD-END> MAR-31-1995 <CASH> 695,590 <SECURITIES> 0 <RECEIVABLES> 161,987 <ALLOWANCES> 18,437 <INVENTORY> 0 <CURRENT-ASSETS> 0 <PP&E> 9,487,419 <DEPRECIATION> 8,109,158 <TOTAL-ASSETS> 2,257,312 <CURRENT-LIABILITIES> 0 <BONDS> 0 <COMMON> 0 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <OTHER-SE> 0 <TOTAL-LIABILITY-AND-EQUITY> 2,257,312 <SALES> 0 <TOTAL-REVENUES> 344,641 <CGS> 0 <TOTAL-COSTS> 257,859 <OTHER-EXPENSES> 0 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 0 <INCOME-PRETAX> 86,782 <INCOME-TAX> 0 <INCOME-CONTINUING> 86,782 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 86,782 <EPS-PRIMARY> 0 <EPS-DILUTED> 0