Antique Pocket Watch Style Logarithmic Circular Slide Rule Calculator c. 1910 Dia - 6cm, 2 1/4 Nickel Casing (possibly nickel plated brass) Description of Scales Outer to Inner 1. Multiplication and division 3 & 4. Sines of angles In working order and good condition Includes box: poor condition Includes instruction leaflet: poor condition & ripped Possibly made in Switzerland and distributed by The Scientific Publishing Company (Fowler Calculators), Manchester, England. The item "Antique Pocket Watch Style Logarithmic Circular Slide Rule Calculator c.
1910" is in sale since Saturday, March 17, 2018. This item is in the category "Collectables\Scientific Collectables\Scientific Instruments\Other Scientific Instruments". The seller is "farg0blue" and is located in SIDLESHAM.
This item can be shipped worldwide.