Archive of Collections



Details and Image



TypeModel No.MakerCountryConstruction
Material
DateScale LengthArea of Use
Long and Long Scale Slide Rules
Engineers Slide Rule Co. / Scofield-Thacher
The Engineers Slide Rule Co.
USA
Wood/paper
1914-1920
60 cm
General Calculations

Notes: Although a Duplex long-scale model a better description is two back-to-back Simplex slide rules designed by E.M. Scofield. It intentionally does not have or need a cursor.


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