Otis King Calculator
Otis King cylindrical slide rule in excellent condition and complete with its instructions and original case.
Dimensions: Size of case: 17 x 4 x 4 cm.
Prop No: 141
Medical and Scientific Antiques Prop Hire
Otis King cylindrical slide rule in excellent condition and complete with its instructions and original case.
Dimensions: Size of case: 17 x 4 x 4 cm.
Prop No: 141
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