Upper shell for the common Märklin H0 metal frame used in many models until the 70s. This is meant as a replacement for the upper part of flatcar Märklin 4503 of type X 05 Klms.

The shell has only RIV markings and flat surfaces for signage, so it could be adapted for any European Railway.

The shell includes studs that fit into the holes of the metal frame, but would need to be glued in place.