Canadian Jewellers Association · Toronto : Maclean-Hunter Pub. Co · leaf 716
uring instruments may be reduced toa minimum. With a little practice thework can be accurately done and the timeconsumed by the use of these instruments can be saved. Measuring tools are very good and necessary in their places,and I do not wish to intimate that they should be altogetherdispensed… … For illustration, we will suppose that a new balance staff isto be fitted, and in order to better show the advantages of thismethod we will suppose the Old Staff has been lost and it has ime impossible to use its diameters to set the calipers by. Then take a rough Staff, such as are sold by…
Jewelry · Jewelry trade
Internet Archive · Thomas Fisher Rare Book Library · Public Domain Mark 1.0. Free to use for anything.
![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten07unit-759-493.webp)
