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Tin Educated Monkey Calculator
Tin Educated Monkey Calculator Detail
Tin Toy Educated Monkey Calculator is a wonderful tin calculator that is entirely mechanical.

Invented almost a century ago it was first made in the USA by William Robertson.

At the time the toy was considered an educational aid as well as a novelty item.

People find this toy fascinating and are disarmed by its beautiful simplicity.

Just move the monkeys feet to the numbers you want to multiply and the answer appears between his hands.

It also has a little fold out stand.

Size: 16cm Tall x 14cm Wide
Material / Mechanism: Tin / Worked by hand.
Age: Adult Collectors Only
We like this because: "so simple! It can even do the square of a number"
Weight: 0.12kg