Just went through the new CARS Inc. catalog

The 56 convertible has it's own visors, probably because the rod sticks out on both ends.

The Belair 2 & 4 door hardtop, 2 door & 4 door sedan, Nomad, Delray. 6 & 9 passenger wagon, 210 2 & 4 door hardtop, 150 2 & 4 door sedan & 150 wagon all share the same visors except for color.

The 210 2 & 4 door sedan has a different pattern on it with it's own part number.

The 210 2 & 4 door wagon has a different part number.

Hope this helps.