Produx Calculator

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This is an early example of the Produx mechanical adding machine which was manufactured in Germany. It was designed by Otto Meuter (1892-1970) who had previously designed the Addiator calculator. In 1928 he founded Werkstatt Otto Meuter in Berlin and produced the first Produx machines.

It is operated with a tiny stylus with a hook on the end, which is inserted in the holes by the numbers to move them up and down. It has seven slides and an eight-digit display. It was capable of addition and subtraction.

This example in our collection probably dates from circa 1930.

Kindly donated by Quintus van Koetsveld.

Manufacturer: Produx
Date: 1930

This exhibit has a reference ID of CH56916. Please quote this reference ID in any communication with the Centre for Computing History.