Lionel postwar O 2552 Canadian Pacific Skyline 500 original box only. This is a super nice and clean box with white edges instead of the typical browned ones you normally see. One inner flap was cut off by a knife which is the only thing keeping me from denoting this as an absolute brick. It is perfectly square and crease-free and comes with a sheet of Lionel wrap has laid folded and flat for likely 70 years, it's super flat and crisp but not neatly folded.