Radio Voltmeter 12 and 240V (1148)
Info
Single wire test voltmeter with 2 ranges: 0-12V and 0-240V (assume tubes). The voltage is selected by one of the two test points on the case.
The base of the case is some kind of old plastic. Top and bottom are chromed.
According to the sign on the dial, works both for DC and AC.
There are no indications of maker.