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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
1968 May
25 cm
Portland Cement Composition
Notes:
"Hemmi date code SE. See J. Oughtred Soc. article: Frohlich, ""The Hemmi 405 cement composition slide rule"". Assigned RRR rarity rating on Oughtred website.
A PDF Manual is available. Please click
HERE.
"
Image 1
Image 2
