Uploaded February 2020 | Updated September 2026, 53 minutes ago

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The Dacometer 908 is a mechanical calculator made in Denmark between 1950 and 1952. It is a key-driven machine similar to the Comptometer or Sumlock machines.

For more information about this machine or other calculators in my collection, visit my website:
jaapsch.net/mechcalc

0:00 Introduction
0:34 Model description
2:10 Addition
2:35 Clearing
3:24 Carry mechanism
5:45 History
8:20 Outro