Pocket Watches

[Waltham Watch Co.]: Waltham Watch Papers volumes I & II
O/P. 31 + 29 pages, no date (1970's ?). In 1862 the Waltham Watch Company commenced issuing technical papers original published elsewhere. Volume 1 is a reprint of Charles Frodsham's On the Laws of Isochronism of the Balance Spring, …"; volume 2 contains items on Compensation of the Balance, Effect of Magnetism on Time-Pieces, The Chronometer and its Adjustment and Watch Jewelling. Very good copy, card covers. (Ref: K4983 - BX11)  in stock.

Wetzel (C.): Prix Courant 1899
O/P. 40 pages, illus., 1899. A priced catalogue of pocket watches issued by Charles Wetzel, Morteau, Doubs, France. A good copy for its age, most pages with coffee stain, paper covers worn and stained. [French language] (Ref: K3338 - BX17)  in stock.