Baby Calculator with Instructions
Physical Object
2019.06.21.02
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The Baby Calculator was a troncet-type adding machine made entirely of pressed steel. When you purchased this item it would have included a leatherette case, instructions, some advertising material, and an aluminum stylus. There were three versions sold throughout its history. For versions 1 and 2 the differences were cosmetic as each was the same size and made from the same materials. These measured 2.9375″ W x 5.75″ L x .4375″ H and weighed about 5 ounces. Version 3, however, was made from pressed steel with a plastic back plate. It weighed 6 ounces and measured 3.25″ W x 5.75″ x .3125″ H. It also had a 9 digit display as opposed to a 7 digit display for versions 1 and 2.