Alarm clock
The mechanical alarm clock of the brand Kaiser from the 1930s was a mass-produced article and predominantly used in private households. It…
Mechanical calculator, Facit
00:00
00:43
About the sound
A mechanical calculator, or calculating machine, was a mechanical device used to perform automatically the basic operations of arithmetic. Most mechanical calculators were comparable in size to small desktop computers and have been rendered obsolete by the advent of the electronic calculator.
Performed calculation: 2457/130 = 18,9
After 20 seconds you get the answer
The calculation is repeated two times
Model year: 1958
Sound recordist: Torsten Nilsson
Photographer: Torsten Nilsson
Video recordist: Torsten Nilsson
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