A 10″ slide rule made of mahogany, framed with celluloid, with a plastic cursor with single hairline. The cursor has plastic ends. This is a Mannheim-type slide rule with scales on the front side and conversion tables on the back. The sides of this slide rule have inch and centimeter scales. The back side of the ridged slide has a blank wooden surface. Interestingly, the conversion table sheet, made of celluloid (or more durable version of celluloid) has been inserted between a specially made spaces in the stock. This sheet can be removed. Also, the cursor can easily be slid past the ends of this slide rule. The slide is slightly longer than the stock for ease of use. Includes instructions and case. Scale: Front: M, S, A, B, CR, D, T, N. Back: common formulae used in mathematical calculation, conversion tables and information about certain metals.
Includes: “Instructions for the use of the ‘Supreme Slide Rule'”, Cardboard case.
Accession Number: 2010.lej.32
Primary Materials: Mahogany, Celluloid, Plastic
Markings: Old Inventory Number = 32.
Length = 30.2 cm, Width = 5.1 cm, Height = 1.6 cm
Function: Facilitating calculations.
Condition: Item is in very good condition.
Date of Manufacture: c. 1940
Additional Information and References: