Elizur Wright Arithmeter, No. 11 Cylindrical Slide Rule

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  • Details
  • Description
Date Introduced
1869 ca.
Photographer
Richards, Mark
Dimensions
overall: 14 1/2 in x 19 in x 19 in.
Manufacturer
Jos. W. Fowle
Copyright Owner
© Mark Richards
Location
United States
Keywords
Oughtred, William; Analog; Slide rule; Hand calculation
Object ID
X1097.92

Designed by Wright, known as the ‘Father of the U.S. Life Insurance industry,’ to make accurate insurance calculations. It is the equivalent of a linear slide rule more than 60 feet long.