Bidspirit auction | Bipolar 6-Blade Brass Desk Fan

Bipolar 6-Blade Brass Desk Fan - Height: 16 inches. An early 20th-century electric desk fan featuring a bipolar open-frame motor design. The motor is constructed with two large, vertically oriented field coils wrapped in black protective tape, exposing the internal armature, copper commutator, and brush assemblies. The fan is equipped with six teardrop-shaped brass blades mounted to a central hub. The heavy cast iron base and motor frame are finished in black paint. A small lever-operated power switch is integrated into the base, which features the word OFF cast into the iron at the front. The unit has been updated with a modern black insulated power cord and a standard US-type two-prong plug. No manufacturer marks are visible on the base, motor, or blades.