Antique Georgian Faux Ivory Scale Rule G Adams London Draftsman Engineer C1790
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Antique Georgian Faux Ivory Scale Rule G Adams London Draftsman Engineer C1790:
An antiqueGeorgian faux ivory Scale Rule . A late 18th century rule made from ox bone or similar natural material of animal origin. Various scales and a protractor . Clearly a draftsmans or engineers rule. Quite complex scales and graduations. Named G Adams 60 Fleet St London. George Adams famous instrument maker to King George III c 1750 to 1795. In good condition. Approx 6" long .