Slide rule

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  • Details
  • Description
Date Introduced
1970 ca.
Photographer
Richards, Mark
Dimensions
overall: 3/8 in x 6 1/2 in x 1 1/8 in.
Manufacturer
Ricoh Company, Ltd.
Credit Line
Courtesy of Gwen and Gordon Bell
Copyright Owner
© Mark Richards
Location
Japan
Keywords
Oughtred, William; Analog; Hand calculation
Object ID
L2003.7.3

Ricoh was founded in 1936 as “Riken Sensitized Paper” and is better known now as a manufacturer of copiers and cameras.