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Keystone Watch Case Co. was the name of a conglomerate of watch companies assembled by Theophilus Zurbrugg by 1904. Keystone purchased the rights to the E. Howard name (a legacy of the Howard Watch Company ) in 1902 and sold Keystone-Howard watches.
Keystone Watch Company may refer to: The Keystone Watch Case Co. Keystone Standard Watch Co. This page was last edited on 29 ...
E. Howard & Co. was a clock and watch company formed by Edward Howard and Charles Rice in 1858, after the demise of the Boston Watch Company.The pair acquired some of the material and watches in progress, based upon a lien against the defunct company held by Rice, but they were unable to buy the existing factory or machinery, so they moved to Roxbury.
Case back showing hinges, Waltham model 57 American made. Case back inside photo with hallmark of the Waltham watch company; a model 57. In 1850 Aaron Dennison partnered with Edward Howard, a reputable clockmaker. The two formed plans to construct a line of watches with interchangeable parts based on Dennison’s visit to the Springfield armory.
The Model 23 was a 16-size chronograph pocket watch. The Model 4992b was in a 16-size case with a black dial. It was used as the pocket watch for the U.S. military, featuring a less accurate 21-jewel railroad grade movement. [citation needed] By 1970, 13,086 Hamilton Model 21 Marine Chronometers had been produced.
The Keystone View Company was a major distributor of stereographic images, and was located in Meadville, Pennsylvania.From 1892 through 1963 Keystone produced and distributed both educational and comic/sentimental stereoviews, and stereoscopes.