Description
A Fowler Universal Calculator, single sided, Perspex cursor, good condition =£90
An Abney Level, by Short and Mason, London, (Hand scratched 54), some losses to black coating,=£60
Box wood twelve inch caliper rule by Preston and Sons., in good condition =£40
Interesting Micrometer screw gauge, marked ‘H.Camman Birmingham’ and Rd. 373591 (1901) in good condition=£90
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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.