The Antares P4 mechanical calculator

Описание к видео The Antares P4 mechanical calculator

The Antares P4 is a pinwheel calculator made by the Italian company Organizzazione Pozzi in the 1950s.

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

0:00 History
0:20 Models
1:55 Addition
2:11 Counter
2:35 Clearing
3:09 Serial number
3:45 Colours
4:15 Further history
4:58 Outro

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