Hood, Grant · Kansas City, Mo. : Kansas City Jeweler and Optician · leaf 141
tion. The length of the forkmay vary with reference to the diameter of the escape wheel,being from .5 to .7 of its diameter, and in some cases evengreater, in fact some Swiss watches which are made with avery showy escapement, have been found where the lengthof the lever was one and one-half times… … 2.<
Clocks and watches
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