Baby Calculator', c.1960.

Made:
c.1960 in United States and Illinois

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`Baby Calculator' stylus adding device by Glenview, Illinois, USA, c. 1960. With suede pouch and steel selector

`Baby Calculator' stylus adding device by Glenview, Illinois, USA, c. 1960. Like the Exactus, this is one of a number of simple stylus machines introduced in the mid 20th century. It performs multiplication and division by repeated addition and subtraction respectively.

Details

Category:
Mathematics
Object Number:
1992-565
Materials:
aluminium (metal), cotton (fibre), metal (unknown), paper (fibre product), plastic (unidentified), steel (metal) and suede leather
Measurements:
overall (handle extended): 10 mm x 85 mm x 175 mm, 0.11 kg
overall (including leather wallet and steel selector tool): 10 mm x 215 mm x 175 mm,
type:
adding machines (stylus)
credit:
Mrs R. Fallman