Archive of Collections



Details and Image



TypeModel No.MakerCountryConstruction
Material
DateScale LengthArea of Use
Linear
405
HemmiJapan
Celluloid on Bamboo
1968 May25 cmPortland Cement Composition

Notes: "Hemmi date code SE. See J. Oughtred Soc. article: Frohlich, ""The Hemmi 405 cement composition slide rule".

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