Canadian Jewellers Association · Toronto : Maclean-Hunter Pub. Co · leaf 1083
Place collet over cone and turn table till collet is flushwith same; place hairspring on table, and pin to collet. For studding, place colletted spring on cone, and turntable till it Is flush, put stud in position, swing armdirectly over stud and screw down, you can then pin hair-spring to stud…
Jewelry · Jewelry trade
Internet Archive · Thomas Fisher Rare Book Library · Public Domain Mark 1.0. Free to use for anything.
