Cambridge Instruments Galvanometer Shunt Four terminal switched resistive shunt scaled 1/3/10/30/100/300/1000 and zero, total resistance 100,000 ohms. The substantial thickness of paint on the front panel had lifted due to corrosion. As can be seen I have covered the affected area with black matt paint. Working. Cambridge Instrument Company Ltd, UK, date unknown.
This is one of many instruments collected by Jack Davidson C Eng FIEE which I have been given by Dr Graham Winbolt