I'm not sure what you've got there. the badge certainly isn't an aircraft item, and I don't know of any aircraft that used a key-way on the prop shaft.
How big is it, and are there any numbers stamped on it?
I'm thinking it is an industrial ventilation fan; lots of pitch, low RPM, one piece, uses a keyway, low horsepower, very dainty hub area, and likely never made by Hamilton Standard. To me, nothing about it indicates "aircraft". Caveat emptor.
I'm thinking it is an industrial ventilation fan; lots of pitch, low RPM, one piece, uses a keyway, low horsepower, very dainty hub area, and likely never made by Hamilton Standard. To me, nothing about it indicates "aircraft". Caveat emptor.