<ARTICLE> 5 <PERIOD-TYPE> 6-MOS <FISCAL-YEAR-END> DEC-31-1995 <PERIOD-END> JUN-30-1995 <CASH> 202,533 <SECURITIES> 0 <RECEIVABLES> 22,639 <ALLOWANCES> 122,133 <INVENTORY> 0 <CURRENT-ASSETS> 0 <PP&E> 4,292,291 <DEPRECIATION> 3,501,206 <TOTAL-ASSETS> 2,110,625 <CURRENT-LIABILITIES> 0 <BONDS> 0 <COMMON> 0 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <OTHER-SE> 2,031,577 <TOTAL-LIABILITY-AND-EQUITY> 2,110,625 <SALES> 0 <TOTAL-REVENUES> 792,659 <CGS> 0 <TOTAL-COSTS> 437,211 <OTHER-EXPENSES> 0 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 0 <INCOME-PRETAX> 355,448 <INCOME-TAX> 0 <INCOME-CONTINUING> 355,448 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 355,448 <EPS-PRIMARY> 0 <EPS-DILUTED> 0