standard box car with single door is one of five paper demonstrator
cars built for the Container Corporation of America. Built in
March 1963, and numbered 19-23, these Bessemer cars were from
lot 8779. They used nailable steel floors. This type of floor
permitted wood blocking to be nailed securely anywhere along
the floor, and be easily removed without causing any damage
to the floor. Since rolls of paper were strapped to pallets,
this made for an effective securement system.