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That looks like a nice machine. At school we were taught to use mechanical adding machines similar to this. Ours were made to sit flat on the desk, and had a c

That looks like a nice machine. At school we were taught to use mechanical adding machines similar to this. Ours were made to sit flat on the desk, and had a crank-handle on the side. They were a lot scruffier than that Certa! Within a year or two of those lessons, cheap electronic calculators became available.

drcode 4y ago
You can spend many hours on Youtube looking at all the different desk calculators, they all are variations along these lines: https://www.youtube.com/watch?v=j88JslB67fU https://www.youtube.com/watch?v=j88JslB67fU