<ARTICLE> 5 <PERIOD-TYPE> 6-MOS <FISCAL-YEAR-END> DEC-31-1995 <PERIOD-END> JUN-30-1995 <CASH> 295,045 <SECURITIES> 0 <RECEIVABLES> 82,788 <ALLOWANCES> 30,368 <INVENTORY> 0 <CURRENT-ASSETS> 0 <PP&E> 4,983,352 <DEPRECIATION> 4,037,037 <TOTAL-ASSETS> 1,359,376 <CURRENT-LIABILITIES> 0 <BONDS> 0 <COMMON> 0 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <OTHER-SE> 1,332,217 <TOTAL-LIABILITY-AND-EQUITY> 1,359,376 <SALES> 0 <TOTAL-REVENUES> 610,479 <CGS> 0 <TOTAL-COSTS> 361,582 <OTHER-EXPENSES> 0 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 0 <INCOME-PRETAX> 248,897 <INCOME-TAX> 0 <INCOME-CONTINUING> 248,897 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 248,897 <EPS-PRIMARY> 0 <EPS-DILUTED> 0