Brass Oscillating Fan alternating current. I believe this is 1915. On the label on bottom of fan lower right corner looks like a date. The cord looks rough. Should probably be replaced. I brought it home 3 days later and it moves a little. The arm moves on the back but I think a bolt is loose. I Googled how to clean brass. I used ketchup and baking soda on a small portion of blade and cage to show it cleans up. New owner can do that. Allow the photos to be the best descriptor of this item.