Wooden Indicating meter with hinged lid and lockable front clasp. Leather strap with two metal buckles at back. Metal corner covers in all four top corners and bottom corners. Metal plaque attached to top. 5 amp - 150-300 volts. Serial No.50029.
Esterline indicating meter/ Serial No. 50029/ AM Meter 5 AMPERS/ Volt Meter 150 300 Volts/ The Ester Line Company/ Indianapolis, IND. Label
The Esterline-Angus Company. Indicating Meter, 1978.138. The Museum of Transport and Technology (MOTAT).