Omega Series Blundell 405 (10-inch) slide rule

Made:: 1955-1965 in England

Omega Series Blundell 405 (10-inch) slide rule with cardboard case

Details

Category:: Mathematics

Object Number:: 1998-421

Materials:: plastic and complete

Measurements:: overall: 9 x 300 x 43 mm

type:: slide rule

credit:: Mr J.C. Michie

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