<ARTICLE> 5
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-START>                             JUL-01-1997
<PERIOD-END>                               SEP-30-1997
<CASH>                                           6,298
<SECURITIES>                                         0
<RECEIVABLES>                                    4,252
<ALLOWANCES>                                         0
<INVENTORY>                                      2,612
<CURRENT-ASSETS>                                13,590
<PP&E>                                          46,333
<DEPRECIATION>                                (30,479)
<TOTAL-ASSETS>                                  31,666
<CURRENT-LIABILITIES>                            5,027
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                           529
<OTHER-SE>                                      23,493
<TOTAL-LIABILITY-AND-EQUITY>                    31,666
<SALES>                                          7,725
<TOTAL-REVENUES>                                 7,725
<CGS>                                            5,204
<TOTAL-COSTS>                                    5,204
<OTHER-EXPENSES>                                   672
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                  71
<INCOME-PRETAX>                                  1,778
<INCOME-TAX>                                       457
<INCOME-CONTINUING>                              1,321
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                     1,321
<EPS-PRIMARY>                                     0.34
<EPS-DILUTED>                                     0.34