
<TABLE> <S> <C>

<ARTICLE>                              5
<MULTIPLIER>                           1,000
<CURRENCY>                             U. S. Dollars
       
<S>                                                      <C>
<PERIOD-TYPE>                                                    9-MOS
<FISCAL-YEAR-END>                                          DEC-31-1998
<PERIOD-START>                                             JAN-01-1998
<PERIOD-END>                                               SEP-30-1998
<EXCHANGE-RATE>                                                      1
<CASH>                                                           3,482
<SECURITIES>                                                         0
<RECEIVABLES>                                                   22,134
<ALLOWANCES>                                                     1,014
<INVENTORY>                                                     23,789
<CURRENT-ASSETS>                                                69,154
<PP&E>                                                         161,572
<DEPRECIATION>                                                  97,620
<TOTAL-ASSETS>                                                 158,373
<CURRENT-LIABILITIES>                                           30,681
<BONDS>                                                         36,350
<PREFERRED-MANDATORY>                                                0
<PREFERRED>                                                         19
<COMMON>                                                           114
<OTHER-SE>                                                      87,649
<TOTAL-LIABILITY-AND-EQUITY>                                   158,373
<SALES>                                                         36,431
<TOTAL-REVENUES>                                               146,536
<CGS>                                                           24,373
<TOTAL-COSTS>                                                   91,066
<OTHER-EXPENSES>                                                     0
<LOSS-PROVISION>                                                    73
<INTEREST-EXPENSE>                                               2,317
<INCOME-PRETAX>                                                  5,296
<INCOME-TAX>                                                     2,216
<INCOME-CONTINUING>                                              3,080
<DISCONTINUED>                                                       0
<EXTRAORDINARY>                                                      0
<CHANGES>                                                            0
<NET-INCOME>                                                     3,080
<EPS-PRIMARY>                                                        0.29
<EPS-DILUTED>                                                        0.28
        


</TABLE>
