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Keuffel and Esser Thacher's Calculating Machine Type II 4012 cylindrical

Major collection: Science & Technology
Object type: slide rule
Maker: Keuffel & Esser Co.
Date made: 1936
Measurements: box: 24" L x 7" W x 6.5" H
Nomenclature: data processing tools and equipment - slide rules
Classification: tools and equipment

Cylinder, Model # 4012 serial no. 4362. Owned by Prof W. S. Pardoe, C. E., University of Pennsylvania 1909-1962

Model 4012 Catalog Pages

Gift of David A Pardoe