Archive of Collections



Details and Image



TypeModel No.MakerCountryConstruction
Material
DateScale LengthArea of Use
Disk
Ross Rapid Computer
Louis Ross"San Francisco, U.S.A."
Metal
1918Dia. = 12.5 cmGeneral Calculations

Notes: "1) Fourteen scales are provided for general engineering calculations. 2) See Vol 25, No 1 pg23-27 Journal of the Oughtred Society for a details about this slide rule."


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