<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE JUNE 30,
1997 FINANCIAL STATEMENTS AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH
FINANCIAL STATEMENTS.
</LEGEND>
       
                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-END>                               JUN-30-1997
<CASH>                                         310,973
<SECURITIES>                                24,753,279
<RECEIVABLES>                                4,993,893
<ALLOWANCES>                                         0
<INVENTORY>                                 17,467,599
<CURRENT-ASSETS>                            47,940,128
<PP&E>                                      19,396,765
<DEPRECIATION>                            (10,262,992)
<TOTAL-ASSETS>                              64,680,390
<CURRENT-LIABILITIES>                        2,729,941
<BONDS>                                              0
<COMMON>                                     1,537,993
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<OTHER-SE>                                  59,590,368
<TOTAL-LIABILITY-AND-EQUITY>                64,680,390
<SALES>                                     17,985,992
<TOTAL-REVENUES>                            17,985,992
<CGS>                                       12,180,629
<TOTAL-COSTS>                               12,180,629
<OTHER-EXPENSES>                             4,959,609
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                   0
<INCOME-PRETAX>                              1,977,101
<INCOME-TAX>                                   685,000
<INCOME-CONTINUING>                          1,292,101
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                 1,292,101
<EPS-PRIMARY>                                     0.98
<EPS-DILUTED>                                     0.98