<ARTICLE> 5 <PERIOD-TYPE> 3-MOS <FISCAL-YEAR-END> DEC-31-1996 <PERIOD-END> MAR-31-1996 <CASH> 307,162 <SECURITIES> 8,227 <RECEIVABLES> 92,646 <ALLOWANCES> 32,026 <INVENTORY> 0 <CURRENT-ASSETS> 0 <PP&E> 4,717,281 <DEPRECIATION> 4,347,990 <TOTAL-ASSETS> 779,426 <CURRENT-LIABILITIES> 0 <BONDS> 0 <COMMON> 0 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <OTHER-SE> 735,657 <TOTAL-LIABILITY-AND-EQUITY> 779,426 <SALES> 0 <TOTAL-REVENUES> 152,950 <CGS> 0 <TOTAL-COSTS> 160,016 <OTHER-EXPENSES> 0 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 0 <INCOME-PRETAX> (7,066) <INCOME-TAX> 0 <INCOME-CONTINUING> (7,066) <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> (7,066) <EPS-PRIMARY> 0 <EPS-DILUTED> 0