Untested — Simpson 260 Adapter Temperature Tester Model 652 - As-Is

TREK Model 541‑1 Electrostatic Sensor – Untested / As‑Is

SIMPSON 8455 Line Loop Tester for Telecom Usage. Untested Sold As-Is. Vintage!

VINTAGE PYROMETER INSTRUMENT CO. SURFACE PYROMETER UNTESTED

Weston Electrical Instrument Corp Model 476 USN NAVY Volts A.C. Gauge UNTESTED

Weston Electrical Instrument Model 502, Volts D.C. Co Zero Corrector Untested

Vintage Weston Bakelite Model 1 Direct Current Milliammeter - Untested

Superior Instruments Co Model 670 Electrolytic Leakage-Ohms Vintage Untested