calculator; pocket

Maker
Otis King
Description
Black and silver coloured pocket calculator in the form of a cylinder with rotating sections. It comes in a leather case. The calculator was really a type of slide rule used for multiplication, division and things like roots, logarithms and trigonometry.
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Object detail

Department
Object
Maker
Production place
Holburn Viaduct/London/Greater London/England
Signature & date
stamping:end:"MADE IN/ ENGLAND"
stamping:end:"C/ 1332"
printing:side:"Copyright Scale No 423/ Otis King's Pocket Calculator Patentees & Sole Manufacturers: CARBIC LIMITED, 51 HOLBORN VIADUCT.LONDON.E.C.1."
Measurement type, part and reading
Dimensions:folded:L 15cm (L 5 7/8")
Dimensions:extended:L 26cm (L 10 1/4")
Dimensions:0 - Whole:Dia 3.1cm (Dia 1 1/4")
Accession number
1991-010-001/001

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