February 1999 N}\TIONAn BIJTI|ON BUn n ETIN 39
An I nstde f.ook at the f.abor ] ntense
lorocess of Makinq Czech Qlass
Pre-<ser pres>inq out -;1r'tP of Close up of pressrnq
buttons. operatton.
Two -strips of pressed
button-s wartrnq to be broken fiuttons wrth and wtthout
apart excess qlass tnrnrned.