The hub looks a little funny (maybe an old design) but it looks all the world like a GT propeller. It'sa little'a company in'a Italy (I'm Italian so I'm can poke fun
If no one chimes in over here with a better guess, give these guys a try:
http://www.gt-propellers.com
I'm probably totally wrong, so good luck.
Personaly, I'd turn it into a clock and advertise it on e-bay as:
"Authentic Propeller Wall Clock, Not XBox 360"