Intruiging scale
Signed “Avd. 102” on the back
One rotation every 36 seconds
We think this timer has been used in production, measuring productivity, like in “how many units per hour” tasks. To understand the scale: One hour is 3600 seconds, 0.010 will be 100th of that. Dimensions are: diameter 51, thickness 15.5 mm. It is numbered 18479. We date it to the 1950s or earlier.
