The Antique Emerson Northwind 10 Brass Blade 450 Oscillating Electric Fan is a vintage piece from the 1920s to 1940s, featuring a circular vent style and three speeds. Made of brass, cast iron, and metal. With its original Emerson brand and oscillation feature, this table/desk fan exudes a nostalgic charm and is a perfect addition to any collection of small appliances or kitchen and home decor. Made in the United States. Fan works with variable speeds on speeds two and three the fan does make a vibration noise(see video).