Accession No
4605
Brief Description
“Magic Brain” Stylus calculator with instruction leaflet, Japanese, 2nd half 20th Century
Origin
Japan
Maker
Class
calculating
Earliest Date
1950
Latest Date
1980
Inscription Date
Material
metal (brass, white metal, tin); plastic; paper
Dimensions
breadth 80mm; 143mm length; thickness 8mm instructions height 227mm; breadth 95mm
Special Collection
Provenance
Purchased on 05/12/1991.
Inscription
‘Magic-Brain
Calculator’ (front of calculator)
‘MADE IN JAPAN’ (back of calculator)
Description Notes
“Magic Brain” Stylus calculator (4605.1) with instruction leaflet.(4605.2), made in Japan, 2nd half 20th century.
Mechanical calculator with moulded plastic casing and painted tin front plate. Eight holes at the top reveal the result of the calculation to two decimal places. Beneath these are seven columns numbered 1 - 9 in both directions, with a toothed red scale which can move to adjust the number in the window. Metal stylus for moving scales held by plastic clips at the side of the calculator. Metal bar at top for clearing numbers.
The paper instructions tell the user how to clear the machine, add, subtract and multiply, also claiming that it aids division too.
Condition good; complete.
References
Mikey McGovern; 'Pocket calculating devices'; Explore Whipple Collections online article; Whipple Museum of the History of Science; University of Cambridge: https://www.whipplemuseum.cam.ac.uk/explore-whipple-collections/calculating-devices/pocket-calculating-devices
Events
FM:40351
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