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Marginal Track

Pictured: Illustration of U.S. Patent #54950, Montgomery’s Type II Safety Dial Design After failing to receive a patent for his 1899 “Safety Dial” design, Henry S. Montgomery became committed to creating a patentable design with his second generation dial. After several years of development, Montgomery...
Pictured: Seth Thomas “Montgomery Dial” with Continuous Marginal Minute Figures, Fitted on an 18-Size “Railway” Movement. As the five-minute marginal figures became popular on American watch dials in the 1890s, railroad time inspector Henry S. Montgomery recognized an opportunity to create a dial featuring a...
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