Keystone Watch Co.
Private Label Trade Names on American Pocket Watches: The Non-Magnetic Watch Company: Part 15: Alternative Anti-Magnetism Devices: Anti-Magnetic Ajax Insulator
Pictured: “Ajax Insulators” Advertisement, The Jewelers’ Circular, August 3, 1898. As electricity was being adopted across the globe in the 1880s, the watch industry was met with the challenge of.
Pictured: Patent Celluloid Watch Dial from the Keystone Watch Company with excerpt from the March 1888 issue of The Jewelers’ Circular and Horological Review. In February 1888, while Abraham Bitner.
Pictured: Flat Metal Reverse of Celluloid Watch Dial from the Keystone Watch Company One of the primary claims of distinction in Abraham Bitner’s 1881 patent application for his paper dial.
Pictured: Celluloid Keystone Locomotive Watch Dial from the Keystone Watch Company Another variation of the celluloid dials produced by the Keystone Watch Company features the front of a locomotive enclosed.
Pictured: Abraham Bitner’s Patented Paper Watch Dial on a Lancaster Watch Company “Comet” Movement [Courtesy of Heritage Auctions] Before Abraham Bitner used celluloid in the late 1880s as an alternative.
Pictured: Celluloid “French Ivory” Watch Dials from the Keystone Watch Company In seeking an inexpensive alternative to standard enamel dials, the Keystone Watch Company introduced a watch dial manufactured from.