<ARTICLE> 5 <PERIOD-TYPE> 9-MOS <FISCAL-YEAR-END> DEC-31-1997 <PERIOD-START> JAN-01-1997 <PERIOD-END> SEP-30-1997 <CASH> 351,111 <SECURITIES> 0 <RECEIVABLES> 264,337 <ALLOWANCES> (59,101) <INVENTORY> 0 <CURRENT-ASSETS> 0 <PP&E> 43,929,488 <DEPRECIATION> 22,928,947 <TOTAL-ASSETS> 31,296,788 <CURRENT-LIABILITIES> 1,516,057 <BONDS> 23,706,752 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 0 <OTHER-SE> 6,073,479 <TOTAL-LIABILITY-AND-EQUITY> 31,296,288 <SALES> 0 <TOTAL-REVENUES> 13,867,189 <CGS> 0 <TOTAL-COSTS> 13,363,972 <OTHER-EXPENSES> 90,841 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 1,047,954 <INCOME-PRETAX> 10,994,191 <INCOME-TAX> 0 <INCOME-CONTINUING> 0 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 10,994,191 <EPS-PRIMARY> 125.33 <EPS-DILUTED> 125.33