Pipe, Lumber, Container Loads
- Contained in 1961 set 30720 -
Hotshot Cars bearing the 33558 number and "Illinois Central" have been
found with Riss piggyback trailers mounted on them with the non-operating
mount used of the 33509 car. Several of these cars have been found so
this appears to be an factory error that affected a significant number of
cars. (See 33509 for photos of such a car)