Two Vintage Gauges: Weston Sangamo Ltd. Voltmeter and SN Ammeter both c. 1940's

Description

These two vintage gauges probably date to the war years c. 1940.  The one on the left is a Sangama Weston Volt meter and was manufactured in England.  It is 2 1/8" in diameter and is 1 3/8" deep. It appears to be in excellent condition.  The second gauge appears to be an ammeter (or some kind of gauge for measuring electricity).  it is unbranded other than a logo of an
S
over an
N
(or possibly an
N
over an
S
).  I am not sure of its place of manufacture.  Its face is 2 1/2" x 2 1/2" with an actual gauge diameter of 2 1/4".  It is 1 3/4" deep. It also appears to be functional. Both are in very lightly used condition.
Stock Number SA2A-336(2)