<ARTICLE> 5 <PERIOD-TYPE> 9-MOS <FISCAL-YEAR-END> DEC-31-1995 <PERIOD-END> SEP-30-1995 <CASH> 560,921 <SECURITIES> 0 <RECEIVABLES> 117,663 <ALLOWANCES> 33,389 <INVENTORY> 0 <CURRENT-ASSETS> 0 <PP&E> 9,174,229 <DEPRECIATION> 8,089,603 <TOTAL-ASSETS> 1,781,692 <CURRENT-LIABILITIES> 0 <BONDS> 0 <COMMON> 0 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <OTHER-SE> 1,743,989 <TOTAL-LIABILITY-AND-EQUITY> 1,781,692 <SALES> 0 <TOTAL-REVENUES> 950,241 <CGS> 0 <TOTAL-COSTS> 817,531 <OTHER-EXPENSES> 0 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 0 <INCOME-PRETAX> 132,710 <INCOME-TAX> 0 <INCOME-CONTINUING> 132,710 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 132,710 <EPS-PRIMARY> 0 <EPS-DILUTED> 0