Image
Category
Maker
On Display
Object type
Place
Material
Date
Addac adding machine

Addac adding machine

1926

Cordingley's computometer', adding machine, c 1900.

Cordingley's computometer', adding machine, c 1900.

1890-1910

Quixsum Fractional Adding Machine

Quixsum Fractional Adding Machine

1924-1930

Arithmographe polychrome adding machine by Charles Dubois

Arithmographe polychrome adding machine by Charles Dubois

1865-1875

Summira 7 adding machine

Summira 7 adding machine

1927

"American" Adding Machine

"American" Adding Machine

1912-1920

Mechanical counter

Mechanical counter

1891-1900

Adding machine by DTA

Adding machine by DTA

Simple wooden adding device with stylus

Simple wooden adding device with stylus

Mechanised adding machine, paper and case

Mechanised adding machine, paper and case

1920-1940

Adding machine

Adding machine

1790

Mechanical counter for billiards

Mechanical counter for billiards

"American" adding machine

"American" adding machine

Pangborn adding machine ("The Calculator")

Pangborn adding machine ("The Calculator")

1908-1930

Example (no.6173) of the "Rapid Computer" patented in 1892 by the Baker-Vawter Co.

Example (no.6173) of the "Rapid Computer" patented in 1892 by the Baker-Vawter Co.

1892-1900

Adix adding machine in case

Adix adding machine in case

circa 1905

Union spiral adder

Union spiral adder

1905

Leatherette case for mechanical counter for billiards, by A. Weinreiss, made by Kolner Billard-Fabrik.

Case for mechanical counter for billiards

Alpina calculating machine

Alpina calculating machine

Arithmographe polychrome, adding machine invented by Charles Dubois, c. 1866, for 12 figures, black metal and dark wood with bone stylus in original box

Arithmographe polychrome adding machine, with wooden case and bone stylus

1865-1875

"Locke adder" calculating device patented 1901 and made by C.E. Locke Manufacturing Company, Kensett, Iowa, in original box (distressed) with instruction manual

Locke Adder calculating device

1901-1910

"Adix" adding machine, (1903)

Adix adding machine

1903-1905

Mechanical counter for billiards, by A. Weinreiss, made by Kolner Billard-Fabrik with leatheratte case.

Mechanical counter for billiards

Quixsum Fractional Adding Machine, Model C-2728, patented 1924 and made by Precision Adding Machine Co. Inc. (Providence, Rhode Island and Charlotte, North Carolina) with plastic slip case.

Quixsum Fractional Adding Machine

1924-1930

"Adix" adding machine (1905)

"Adix" adding machine (1905)

1905-1905

"Locke adder" calculating device patented 1901 and made by C.E. Locke Manufacturing Company, Kensett, Iowa.

"Locke adder" calculating device, patented 1901

1901-1910