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Antique measuring instruments/7106-Slide rule
Antique measuring instruments/7106-Slide rule
Antique measuring instruments/7106-Slide rule
Antique measuring instruments/7106-Slide rule
Antique measuring instruments/7106-Slide rule
Antique measuring instruments/7106-Slide rule
Antique measuring instruments/7106-Slide rule
Antique measuring instruments/7106-Slide rule
Antique measuring instruments/7106-Slide rule
Antique measuring instruments/7106-Slide rule
Antique measuring instruments/7106-Slide rule
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Antique measuring instruments/7106-Slide rule
Antique measuring instruments/7106-Slide rule
Antique measuring instruments/7106-Slide rule
Antique measuring instruments/7106-Slide rule
Antique measuring instruments/7106-Slide rule
Antique measuring instruments/7106-Slide rule
Antique measuring instruments/7106-Slide rule
Antique measuring instruments/7106-Slide rule
Antique measuring instruments/7106-Slide rule
Antique measuring instruments/7106-Slide rule
Antique measuring instruments/7106-Slide rule
Antique measuring instruments/7106-Slide rule
Antique measuring instruments/7106-Slide rule
Antique measuring instruments/7106-Slide rule
Antique measuring instruments/7106-Slide rule
Antique measuring instruments/7106-Slide rule
Antique measuring instruments/7106-Slide rule
Antique measuring instruments/7106-Slide rule
Antique measuring instruments/7106-Slide rule
Antique measuring instruments/7106-Slide rule
Antique measuring instruments/7106-Slide rule
Antique measuring instruments/7106-Slide rule
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Code 7106
EUR 300.00
In stock

EUR 300.00
In stock

used

1635512821Code 7106 Slide ruleCylindrical slide rule by Otis King's Pocket Calcultor Patent N. 183723 Scale 423 from the 1930s, chromed brass, in its original cardboard box, complete with instructions. Maximum length 26 cm - 10.23 inches, minimum 15.5 cm - 6 inches, diameter 3 cm - 1.18 inches.

Otis Carter Formby King (1876–1944) was a grocer and engineer in London who invented and produced a cylindrical slide rule with helical scales. The product was named Otis King's Patent Calculator, and was manufactured and sold by Carbic Ltd. in London from about 1922 to about 1972.

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Code 7106 Slide rule

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