Description
Three cased Proportional dividers
00-marked for Thomas Jones, 62, Charing Cross, London £180 c1850
01-marked for Gilbert & sons London £140 c1830
02-Unsigned c1890£110
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Dealer information
Fletcher
Fletcher Wallis
Fletcher Wallis sells objects and books relating to the history of science, medicine and technology Arcade. He publishes books through Vernier Press, including Antique Medicine Chests, and Corkscrew Patents from 1795. He has been dealing for forty eight years.