Lot of 3 Western Electric Bell System 320 Type Hazardous Location Telephones

Lot of three heavy-duty industrial telephones manufactured by Western Electric for the Bell System. These units are designated as 320 Type Telephone Sets, designed for hazardous or heavy industrial environments with robust metal housings, rotary dials, and attached handsets. The caution plates indicate specific wiring protocols required for housing access. Items show surface wear, dust, and handling marks from industrial storage.