Canadian Jewellers Association · Toronto : Maclean-Hunter Pub. Co · leaf 450
attachments also have been devised. Of the many formscommonly met with in Swiss work several arc shown inthe accompanying illustration. MANY FORMS OK MAINSPRING ATTACHMENTS. The ordinary Geneva hooking is shown at a. Usedin connection with the simple hook in the barrel, this isthe characteristic… … Some common forms of mainspring attachments. any other in going barrel watches. In the excellent attach-ment of the old English fusee watch, a hook, usuallyrectangular in form, is rivetted to the spring itself andfits a corresponding slot in the rim of the barrel. Thisforms a rigid attachment. By…
Jewelry · Jewelry trade
Internet Archive · Thomas Fisher Rare Book Library · Public Domain Mark 1.0. Free to use for anything.
