Polar Cub Type G 6" Electric Fan Early 1920s Brass Blades

This is the third vintage fan I bought. The blades were so tarnished when I bought it I thought they were supposed to be black. They seem to have a bit of a copper tinge to them now but the blades are brass.
The patent date is 1921 so most likely 1921-25.
This fan was also AC or DC as is common for that era, perhaps a bit less common for the 1920s as AC was pretty much the norm by then.
Also of note is the fan's small size. The blades are 6" across.
This fan works fine. The cord is not original but the replacement cord is looking about 40-50 years old.