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.
Pictured: Advertisement for Montgomery’s Second “Safety Dial,” Published in the April 21, 1920 issue of The Topeka State Journal. Since the introduction of his first “Safety Dial” on the Santa.
New image transfer techniques at the end of the 19th century also yielded innovative and practical dial designs. The “Rate Dial” Designed to Indicate Speed of Travel, c.1895, Fitted on.
Pictured: “The Wells Dial” c.1900 One particularly interesting design proposed in response to the standard time adopted by the railroad industry is “The Wells Dial.” This unique dial exhibits one.
