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| Ref:12956 Balance wheel (crown wheel) engine. Swiss 19th century pattern.
For cutting verge escape wheels. Brass body and feet, with rotatable cutter frame. 8.5 cm diameter index plate, drilled for 7 to 21. Height 18 cms.
See Beitschrift fur Gross und Klein Uhrmacher, edited by Dr Carl Hartmann, 1853, for a detailed illustration of this engine. Ex Ham & Huddy workshop. In good, unpolished condition. | |
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