Adding Machine Collection

Engraving of Calculating Machine with Crank
(Original Caption) 1855-Engraving of a calculating machine invented by George and Edward Scheutz

Pascal's Adding Machine
(Original Caption) View of a replica of the calculating machine invented by Blaise Pascal (1623-1662). BPA2 #870

Desk Covered with Assorted Office Supplies
(Original Caption) Desk covered with an assortment of common office supplies: telephone, ledger, adding machine, stapler, etc. Photograph circa 1938

Calculating Device
A calculating device created by Scottish mathematician John Napier in 1617 which consists of cylinders inscribed with multiplication tables also known as "Napier's Bones"

Glenn H. Curtiss Leaning on Airplane
(Original Caption) 1909-Rheims, France- Glenn H. Curtiss at the aviation meet in Rheims, France

IRS Workers Checking Tax Forms
(Original Caption) 3/14/1944-New York, NY-Here are a few operators out of the batteries of workers who check your tax form with calculating machines

17 Century Pascalian Calculating Machine
(Original Caption) Calculating machine; derived from Blaise Pascal (1623-1662), top view. Undated photograph

Chinese Abacus
The Chinese text indicates that the number represented on the abacus is 7, 230, 189

Monroe 800 Adding Machine
(Original Caption) Monroe 800 adding machine. Undated photograph

Girl Using Adding Machine
(Original Caption) Helen Gibbons, using adding machine. C.1940

Wooden Abacus
An antique wooden abacus

Large Computers Occupying Room
(Original Caption) -: I.B.M. computers and attendants. Undated photograph

Man Using Adding Machine
(Original Caption) Accountant of 1896 trying out a Felt and Tarrant adding machine. Undated illustration

Hand Typing on an Adding Machine
(Original Caption) Close-up of a Victor adding machine, with a woman's hand resting on the keys. Undated photograph

Large Early Computers in Room
(Original Caption) I.B.M. computers and attendant

Germany, Nordrhein-Westfalen, Bonn, Arithmeum, museum of technology, science and art, interior, Burroughs Number 11 adding machine, key detail, 1912

An engraving depicting a clerk using a Pascal adding machine
5311630 An engraving depicting a clerk using a Pascal adding machine, and writing down his results with a quill pen, 19th century; (add.info.: Date: 1835); Universal History Archive/UIG

Government charwoman who provides for a family of six on her salary
Washington, D.C. Government charwoman who provides for a family of six on her salary of one thousand and eighty dollars per year. She puts ten percent of her salary in war bonds. [Mrs Ella Watson]

Calculator of Blaise Pascal, a mechanical device for adding and subtracting, 1600s. Hand-colored woodcut of an illustration

TYPEWRITER, 1896. The Dudley typewriter and adding machine. Engraving, American, 1896

1905 Busy Office Scene
United States: c. 1905. A busy office scene with a dictaphone, many secretaries, and a man operating a new Burroughs Adding Machine

Early Burroughs Adding Machine
United States: c. 1900 An early model of the Burroughs adding machine

Scientific calculator. This electronic device can be used to carry out advanced mathematical calculations, and can also be programmed to carry out series of calculations

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Discover the fascinating history of calculating devices at Arithmeum, Bonn, Germany's Museum of Technology, Science, and Art. From a Government charwoman's trusted adding machine in Washington, D.C., 1942, as depicted in Gordon Parks' iconic photograph PSCI2A-00111, to the early Dudley typewriter and adding machine from 1896, and the bustling office scene of 1905 with an Early Burroughs Adding Machine, these machines revolutionized the way we perform calculations. Experience the evolution of technology through the lens of mathematics at Arithmeum.