<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> 6-MOS 6-MOS <FISCAL-YEAR-END> DEC-31-1997 DEC-31-1998 <PERIOD-START> JAN-01-1997 JAN-01-1998 <PERIOD-END> JUN-30-1997 JUN-30-1998 <EXCHANGE-RATE> 1 1 <CASH> 156,291 523,050 <SECURITIES> 0 0 <RECEIVABLES> 3,618,756 3,191,135 <ALLOWANCES> 98,000 225,000 <INVENTORY> 1,727,684 1,749,941 <CURRENT-ASSETS> 5,710,131 6,134,818 <PP&E> 23,179,456 24,614,915 <DEPRECIATION> 18,792,473 19,690,663 <TOTAL-ASSETS> 10,475,699 11,379,851 <CURRENT-LIABILITIES> 2,261,753 2,906,844 <BONDS> 0 0 <PREFERRED-MANDATORY> 0 0 <PREFERRED> 0 0 <COMMON> 35,938 37,959 <OTHER-SE> 8,178,008 8,435,048 <TOTAL-LIABILITY-AND-EQUITY> 10,475,699 11,379,851 <SALES> 0 825,703 <TOTAL-REVENUES> 10,883,547 3,445,291 <CGS> 0 763,599 <TOTAL-COSTS> 7,137,410 5,226,785 <OTHER-EXPENSES> 2,797,812 0 <LOSS-PROVISION> 0 0 <INTEREST-EXPENSE> 3,646 (6,150) <INCOME-PRETAX> 951,971 (1,775,344) <INCOME-TAX> 100,000 0 <INCOME-CONTINUING> 0 (1,775,344) <DISCONTINUED> 0 0 <EXTRAORDINARY> 0 0 <CHANGES> 0 0 <NET-INCOME> 851,971 (1,775,344) <EPS-PRIMARY> 0.28 (0.55) <EPS-DILUTED> 0.27 (0.55)