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Relay No.150 Linear slide rule

Major collection: Science & Technology
Named collection: Keuffel & Esser Company Collection
Object type: slide rule
Maker: Relay
Place made: Japan
Materials: wood; metal; celluloid
Measurements: 1/4 in x 12 1/2 in x 2 in
2004.010.0668

Keuffel & Esser Company Slide Rule Collection Donated by InteliCoat Technologies