Uploaded June 2021 | Updated September 2026, 5 hours ago

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The Melitta VII/16 is a mechanical calculator with a pinwheel mechanism, which was made in East Germany from 1955 till at least 1963. It has a unique input mechanism with input pins that remain stationary when you turn the crank.

For more information on this and other calculators in my collection, please visit my website:
jaapsch.net/mechcalc

0:00 Introduction
0:18 Input mechanism
1:34 Addition, multiplication
2:48 History
6:41 Clearing
7:30 Division
9:54 Back transfer
11:44 Carriage release
12:30 Outro