Otis King pocket calculator (a spiral logarithmic slide rule)

Made:: London

Otis King pocket calculator (a spiral logarithmic slide rule), Model K, in box with instructions

Details

Category:: Mathematics

Object Number:: 1985-271

Materials:: steel, paper and card

type:: spiral slide rule

credit:: Crosby, R.C.

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Parts

Case for Otis King pocket calculator

Cardboard case for Model K Otis King pocket calculator (a spiral logarithmic slide rule).

Measurements:: overall: 38 x 170 x 40 mm

Materials:: cardboard , paper and complete

Object Number:: 1985-271 Pt1

type:: case

Otis King pocket calculator

Otis King pocket calculator (a spiral logarithmic slide rule).

Materials:: steel , paper and card

Object Number:: 1985-271 Pt2

type:: spiral slide rule

Otis King pocket calculator (a spiral logarithmic slide rule)

Details

Parts

Case for Otis King pocket calculator

Otis King pocket calculator

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