Set of balance scales mounted on a wooden base. In the centre is a tall brass rod which has an angled rod screwed on top. This acts as the fulcrum for the horizontal lever of the scales. This lever has an inverted semi-circular loop at each end from which is suspended an "S" shaped hook. A red string is attached to this hook and at the end of the string is a curved pan at each end. The height of the system can be raised or lowered on the angular rod on top which has notches along its length.
Scale, 1982.1423. The Museum of Transport and Technology (MOTAT).