Hard to find. In as found condition.
Vintage Allen Battery Cell Tester #E-51C Allen Electric & Equipment Co.
Vintage Allen Compression Test Gauge in Metal Box G4 WW2 Era
VINTAGE Allen MOTOR TESTER ANTIQUE CAR COMPRESSION TESTER TOOL G4 Metal Box
Vintage Allen Tune Timing Light Atomic Age MCM Ray Gun 1950s Untested 50-507
Vintage ALLEN Compression Tester Gauge With Metal Box And Accessories
Vintage- ALLEN-- COMPRESSION TESTER- Gauge- G4 -In Case--works-No paper work
