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PASCAL'S CALCULATOR 6-digit Pascaline, brass body on wooden footed base, 285 x 127 x 73mm (11 1/4 x 5 x 2 7/8 inches), 6 windows with sliding bar revealing printed number cylinders, 6 brass spoked input wheels. underside with brass door that opens to reveal inner gears, c. 1920. image 1
PASCAL'S CALCULATOR 6-digit Pascaline, brass body on wooden footed base, 285 x 127 x 73mm (11 1/4 x 5 x 2 7/8 inches), 6 windows with sliding bar revealing printed number cylinders, 6 brass spoked input wheels. underside with brass door that opens to reveal inner gears, c. 1920. image 2
Thumbnail of PASCAL'S CALCULATOR 6-digit Pascaline, brass body on wooden footed base, 285 x 127 x 73mm (11 1/4 x 5 x 2 7/8 inches), 6 windows with sliding bar revealing printed number cylinders, 6 brass spoked input wheels. underside with brass door that opens to reveal inner gears, c. 1920. image 1
Thumbnail of PASCAL'S CALCULATOR 6-digit Pascaline, brass body on wooden footed base, 285 x 127 x 73mm (11 1/4 x 5 x 2 7/8 inches), 6 windows with sliding bar revealing printed number cylinders, 6 brass spoked input wheels. underside with brass door that opens to reveal inner gears, c. 1920. image 2
Lot 29
PASCAL'S CALCULATOR
6-digit Pascaline, brass body on wooden footed base, 285 x 127 x 73mm (11 1/4 x 5 x 2 7/8 inches), 6 windows with sliding bar revealing printed number cylinders, 6 brass spoked input wheels. underside with brass door that opens to reveal inner gears, c. 1920.
History of Science and Technology, including Air and Space
5 November 2020, 10:00 PST
Los Angeles

Sold for US$16,325 inc. premium

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PASCAL'S CALCULATOR

6-digit Pascaline, brass body on wooden footed base, 285 x 127 x 73mm (11 1/4 x 5 x 2 7/8 inches), 6 windows with sliding bar revealing printed number cylinders, 6 brass spoked input wheels. underside with brass door that opens to reveal inner gears, c. 1920.
Provenance: The Computer History Collection of Serge Roubé.

Attractive replica of the calculator that 19-year old Blaise Pascal invented in 1642 in order to assist his father in his work as a tax collector. The younger Pascal was awarded a Royal Privilege to produce and market what is considered the first mechanical calculator to add and subtract. It is thought that only 20 were ever produced and only 9 are now known to exist.

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