Hudson’s Shaft Beam & Girder Strength Scale

Hudson’s Shaft Beam & Girder Strength Scale

£160

Dimensions

5.25 inches

Circa

1900

Maker

Stanley, London

Country of manufacture

UK and Ireland

Categories: Scientific, Calculating

Description

An unusual and rare complex slide rule for calculations relating to beam and girder strengths. In original case with instructions. Made of celluloid.

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GB 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.

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