Vintage Sterling Universal Tube Tester – Cleveland, Ohio – Early Electronic Test Equipment Personalization Picks and a tubular magazine holding

and a tubular magazine holding around 7-9 rounds depending on exact setup (shorter barrels reduce capacity slightly)

while the reverse bears the inscription “WINTERSCHLACHT IM OSTEN 1941/42” (Winter Battle in the East 1941/42) above a crossed sword and branch motif

one of the most proven and versatile hunting cartridges ever made

New Jersey under 1942 contract markings

Vintage Sterling Universal Tube Tester – Cleveland, Ohio – Early Electronic Test Equipment Personalization Picks and a tubular magazine holdingVintage Sterling Universal Tube Tester Cleveland, Ohio Early Electronic Test Equipment Original Sterling Universal Tube Tester manufactured by The Sterling Manufacturing Company of Cleveland, Ohio. Designed for testing vacuum tubes used in radios, military communications equipment, and early electronic devices, this compact tester features dual analog meters for filament voltage and plate milliamperes, along with its original cloth covered power cord