<ARTICLE> 5 <PERIOD-TYPE> 6-MOS <FISCAL-YEAR-END> DEC-31-1996 <PERIOD-END> JUN-30-1996 <CASH> 296,744 <SECURITIES> 0 <RECEIVABLES> 48,368 <ALLOWANCES> 27,731 <INVENTORY> 0 <CURRENT-ASSETS> 0 <PP&E> 2,583,795 <DEPRECIATION> 2,201,742 <TOTAL-ASSETS> 843,229 <CURRENT-LIABILITIES> 0 <BONDS> 0 <COMMON> 0 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <OTHER-SE> 831,570 <TOTAL-LIABILITY-AND-EQUITY> 843,229 <SALES> 0 <TOTAL-REVENUES> 185,105 <CGS> 0 <TOTAL-COSTS> 177,086 <OTHER-EXPENSES> 0 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 0 <INCOME-PRETAX> (31,087) <INCOME-TAX> 0 <INCOME-CONTINUING> (31,087) <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> (31,087) <EPS-PRIMARY> 0 <EPS-DILUTED> 0