Tag Archives: differential


PATENTED OCTOBER 25, 1910 BY THE DIFFERENTIAL POWER CLOCK CO., 41 1/2″ H, 18 1/2″ W, 7 1/2″ D Images Click on thumbnails to see larger images:

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One Year Differential Gallery Clock

One Year Differential Gallery Clock: walnut case; time and strike; 11″ metal dial; not tested. 22″ diameter All items sell As Is, Where Is, no guarantees of any kind. We accept Mastercard & Visa, no paypal, no personal checks, no money orders, no wire transfers. Your credit card will be charged twice; once for the […]

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Rare 1 Yr Differential Mahogany Wall Clock

Circa 1915 American One Year Differential Clock 1 year Wall Clock with 11″ Good original signed painted dial, Original spring driven time only brass movement, One Year Differential clock in mahogany case, marked patent October 25, 1910. Very good condition with associated bottom panel, needs cleaning. 42″H x 18.5″W x 7″D Images Click on thumbnails […]

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