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Details and Image
Type
Model No.
Maker
Country
Construction
Material
Date
Scale Length
Area of Use
Linear
405
Hemmi
Japan
Celluloid on Bamboo
1950-1952
25 cm
Portland Cement Composition
Notes:
"Rule has no date code but cursor is labeled ""Made in Occupied Japan"". CS2S(A Scale) has labeling error. See article J. Oughtred Soc. (in press): Frohlich, ""The Hemmi 405 cement composition slide rule""."
Image 1
Image 2
