Associated Research Incorporated Model 21 Hand Tachometer USA Speed Indicator

Vintage Deumo German Mechanical Hand Tachometer Drehzahlmesser w/case and acces.

PIONEER Photo -Tach Model 36 - Photo Analog Tachometer w/ Case Instruction USA

lot of 2 Vintage James G. Biddle No 554 Hand Tachometer w/ cases and accessories

James G. Biddle Hand Tachometer No. 554. 754667, Vintage

Vintage James G. Biddle “Jagabi” Type D No. K Tachometer 3000–12000 RPM w/ Case

Associated Research Inc. Meg-Chek Model 2095A insulation tester W/2 Leads/ Cover

Vintage! Associated Research AR Model 50 Motor Rotation Indicator / Meter