James G Biddle Motor Rotation Tester Cat #80060

BIDDLE MEGGER Insulation Tester Series 1 2500 Volts POWERS ON

Rare Antique Circ 1900’s James Biddle Motor Rotation Tester Model #1 Serial 1692

VINTAGE JAMES G BIDDLE MODEL 1 MOTOR ROTATION TESTER

James G Biddle Motor Rotation Tester For Parts Only

Biddle Motor & Phase Rotation Tester Cat No 560060

80060-500 Test film, 80 mm diameter, X-ray fluorescence spectrometer disc film