Ok, this is probably not possible but, I wonder if there is any way a curved split window from a ‘52 Chevy CAR would fit the cab of a ‘54 Chevy TRUCK. If you look at pictures, they look like the same thing. I’m probably way off.

Another possibility (that makes more sense) is that a P.O. added the center piece in order to run a sun visor from an earlier truck or better yet , a visor from a ‘49 to ‘52 car.

Whada ya think?