<ARTICLE> 5 <MULTIPLIER> 1 <PERIOD-TYPE> 6-MOS <FISCAL-YEAR-END> DEC-31-1997 <PERIOD-START> JAN-01-1998 <PERIOD-END> JUN-30-1998 <CASH> 94,672 <SECURITIES> 0 <RECEIVABLES> 49,087 <ALLOWANCES> 0 <INVENTORY> 23,388 <CURRENT-ASSETS> 176,588 <PP&E> 4,600,629 <DEPRECIATION> 4,521,409 <TOTAL-ASSETS> 319,211 <CURRENT-LIABILITIES> 968,764 <BONDS> 0 <COMMON> 159,720 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <OTHER-SE> (809,273) <TOTAL-LIABILITY-AND-EQUITY> 319,211 <SALES> 251,422 <TOTAL-REVENUES> 265,915 <CGS> 280,911 <TOTAL-COSTS> 280,911 <OTHER-EXPENSES> 168,666 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 18,401 <INCOME-PRETAX> (198,428) <INCOME-TAX> 0 <INCOME-CONTINUING> (198,428) <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> (198,428) <EPS-PRIMARY> (.12) <EPS-DILUTED> (.12)