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: 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.
