Antique Emerson Electric Mfg Co. Oscillating desk fan, Type 2250B, manufactured in St. This is a 10-inch, 4-blade model with original wire cage and cast iron base. 110V – 60CY. Made in USA. Heavy cast iron construction. Original 4 metal blades. Early wire guard design. Rear oscillation mechanism. On/Off switch at base. Classic black finish with age-appropriate wear.