Specification of George Sanderson, AD 1762, No 777

Catalogue no: 1008
Dewey No: Subject(s): Patents
Author(s): George Sanderson
Total pages: 4 Illustrations: Yes, 1 page Language(s): English Publication date: 1762
Editor: Publisher: The Great Seal Patent Office
Dimensions: 290mm x 200mm Condition: Blue Paper covers fragile
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Notes:
Patent relating to a mechanical lunar and calendar key described as follows (original spelling): "New-invented Machine, called a Lunar and Calender Watch Key, constructed upon Mechanical Principles, and adapted to every Watch hitherto made, and acts thereon no otherwise than a Common Key; but, by means of a Screw and Wheels of a Curious Construction, is capable of shewing, in the most Accurate Manner, the Age of the Moon, the Day of the Month, the Revolution of the Tides, and several other Motions; which said Machine is also Constructed to answer all the above-mentioned Purposes independent of any Watch whatsoever, and that in the most Plain and Easy Manner, and will be of Great Benefit to His Majestie's Subjects, and more especially to those Using the Sea;". Has the label of Malcolm Gardner, Horological Bookseller A reprint of 1856
Room location: Library Cabinet: Q Shelf: 4
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