`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.
- Object Number:
- aluminium (metal), cotton (fibre), metal (unknown), paper (fibre product), plastic (unidentified), steel (metal) and suede leather
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,
- adding machines (stylus)
- Mrs R. Fallman