The numbers required are pointed at by arrows attached to the feet of the unfortunate primate (who has moveable shoulders and elbows), and the multiplication product can then be read at the bottom of the board that he holds between his hands. For division, the board is put on the number to be divided, while the animal’s left foot goes on to the divisor, and his right foot then points at the answer. We offer a reproduction of the 1916 “Consul”, of sheet steel with printed detail and prop-up sidepiece. 16.5 x 15 x 1.7 cm. Weight 190 g.
A device for ”Arithmetical Multiplication and Division“ was patented in 1889 in Munich, and rapidly became the model for a whole row of mechanical calculators. The most popular of these was “Consul”, the calculating monkey, who saw the light of day in the USA in 1916 and continued to be produced there up to the 1970s as an educational toy.
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