"Book Of Watchmaking. A Manual Guide To Watchmaking Claudius Saunier"
Rare Book of Watchmaking. A manual guide to watchmaking, dealing with the notions of calculation and drawing of daily utility. Choosing and working with metals. Manpower, modern tooling and execution of the pieces, collection of practical processes and eight engraved planks. By Claudius Saunier, Published by the office of the time magazine of Paris, in 1870
Very complete condensed book for restorers of old watchmaking.
I remain at your disposal for any additional information or photos.