Vintage Ampmeter 8 x 8 x9cm wooden Base

Vintage Pocket Meter Volt Meter Empty Box

Vintage Hand Held Pocket Qatch Voltmeter & Ampmeter (Bay3)

Vintage pocket watch style volt meter

Vintage Hand Held Pocket Watch Voltmeter

Fowler’s Universal calculator, In Original Leather Case & Long Scale Calculator

Lot of Vintage Antique Brass and iron Scale Balance Weights

Vintage Sangamo Weston High Frequency Ammeter Thermo Couple 1 Amp 1940 Boxed WW2