Multi-range current shunt for Unipivot galvanometer
Multi-range current shunt for Unipivot galvanometer, by the Cambridge Instrument Co. Ltd., England, no. L 105594. Dial switch type with ranges 0.075, 0.15, 0.3, 0.75 and 1.5 amperes plus short-circuit setting. (Case slightly damaged). Probably circa 1950.