Serial No.389281
Evershed and Vignoles Voltmeter Moving coil instrument in wooden case with carrying strap.Scaled 0-150 range 0-7.5/15/30/60/150/300 Volts DC selectable via terminals on top of the case. 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.
Clearly marked terminals on top of the instrument.
