Archive of Collections

Details and Image

TypeModel No.MakerCountryConstruction
DateScale LengthArea of Use
Keuffel & Esser N-4096
Keuffel & EsserUSA
Celluloid on Mahogany
about 195850 cmCommerce

Notes: "Serial number 434221. Marketed as a merchants' slide rule. Five scales only: C, D, CI, CF and DF. Comes with metal feet so rule is convenienltly oriented for regular use on a store counter.

A PDF Manual is available. Please click HERE."

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