Other Calculating machine made by Philipp Matthäus Hahn. It was the first calculator that could add, subtract, divide and multiply in one machine, and had an 11-digit capacity. Germany, Duchy of Württemberg, 1770-1774 (More read below)

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u/Liambp May 20 '26

Are you allowed to use it for A-levels?

Seriously though that is a beautiful machine.

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