Clock part, I found an old circa 1900 alarm clock that looked like it had fallen into a blender than into a garbage disposal, afterwords hit with a sledgehammer. It had a very similar part in it. Being machine-made due to perfect teeth, overall sharp perfection, and the "X" shaped frame, it is probably from the late 1800's to maybe around the 1910's, after that electric clocks started to phase out wind-up clocks.
Very neat find, Coinman123,