Vtg Antique GE General Electric 75423 AOU Brass Blade Fan 3 Speed Oscillating. Vtg Antique GE General Electric 75423 AOU Fan 3 Speed Oscillating WORKS GREAT. Brass tag says Cat: 75423, Serial 272156-1 , No: K 63862, Type: AOU, Form AF2, Cycle: 60, Volts 110. Fan works very good oscillates nicely all 3 speeds work…