Calculigraphe

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  • Details
  • Description
Date Introduced
1900 ca.
Photographer
Richards, Mark
Dimensions
3/4 x 2 x 3 in.
Manufacturer
H.C.
Credit Line
Gift of Tom McIntyre
Copyright Owner
© Mark Richards
Location
France
Keywords
Oughtred, William; Analog; Slide rule; Hand calculation
Object ID
X173.83

Watch-size rules were popular, and even stylish, in some circles.