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Keuffel and Esser Log Log Duplex Decitrig 4081-3 10" Linear slide rule
Object type: slide rule
Maker: Keuffel & Esser Co.
Materials: wood, metal, ivory/plastic
Measurements: linear 12.5" x 2
Nomenclature: data processing tools and equipment - slide rules
Classification: tools and equipment
Two slide rules and three leather cases. Keuffel and Esser model 4081-3. These slide rules were used by girls hired by MIT in the 1940s to do the calculations and translations of data in the Wind Tunnel.
More information: Model 4081-3 Catalog Pages