Serial No.354944
Evershed's Moving coil ammeter moving coil instrument in wooden case, 0-500 milliamps DC. Evershed and Vignoles 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
I believe the S.S.on the meter scaleplate indicates that this is a sub standard instrument. On the underside of the case is a metal sleeve which houses and protects the instruction card shown here:
