This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Bain First electric clock. Precision regulator clock with electromagneticallydriven pendulum by Alexander Bain London around on display in Deutsches Uhrenmuseum German clock museum Inventory No One of the first electric clocks ever built The pendulum was kept swinging by pulses of magnetic force from an electromagnet solenoid visible