<ARTICLE> 5 <LEGEND> THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM UNAUDITED CONDENSED CONSOLIDATED BALANCE SHEETS AND STATEMENTS OF OPERATIONS ON FORM 10- QSB AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FORM 10-QSB. </LEGEND> <MULTIPLIER> 1 <CURRENCY> U.S. DOLLARS <PERIOD-TYPE> 3-MOS <FISCAL-YEAR-END> DEC-31-1997 <PERIOD-START> JAN-01-1997 <PERIOD-END> MAR-31-1997 <EXCHANGE-RATE> 1 <CASH> 219,079 <SECURITIES> 0 <RECEIVABLES> 3,655,134 <ALLOWANCES> 135,000 <INVENTORY> 1,953,927 <CURRENT-ASSETS> 6,118,012 <PP&E> 23,083,422 <DEPRECIATION> 18,560,014 <TOTAL-ASSETS> 11,031,972 <CURRENT-LIABILITIES> 3,609,436 <BONDS> 0 <PREFERRED-MANDATORY> 35,672 <PREFERRED> 0 <COMMON> 0 <OTHER-SE> 7,386,864 <TOTAL-LIABILITY-AND-EQUITY> 11,031,972 <SALES> 0 <TOTAL-REVENUES> 4,450,699 <CGS> 0 <TOTAL-COSTS> 2,930,214 <OTHER-EXPENSES> 1,373,808 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 3,617 <INCOME-PRETAX> 150,294 <INCOME-TAX> 0 <INCOME-CONTINUING> 0 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 150,294 <EPS-PRIMARY> 0.05 <EPS-DILUTED> 0