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Keuffel and Esser Mannheim Merchant's Slide Rule 4150-1 5" Linear slide rule

Major collection: Science & Technology
Object type: slide rule
Maker: Keuffel & Esser Co.
Nomenclature: data processing tools and equipment - slide rules
Classification: tools and equipment

model 4150-1, s/n 091421. in green leather case.

More information: Model 4150-1 Catalog Pages

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