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'Consul' the Educated Monkey, 1916.

Hills, Jennie

'Consul' the Educated Monkey, 1916.
3 4 c m
actual image size: 32cm x 26cm


A mathematical toy calculator patented by William Robertson and made by the Educational Novelty Company of Dayton, Ohio, USA. This is an early example of a mathematical toy. When each of the monkey's feet are moved to point at two numbers, the monkey's hands move to indicate the product.

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© Science Museum / Science & Society Picture Library

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