model railroad

Railfans: Help

My fellow rail fans and model train enthusiasts, below are two photos from Andrew Lloyd Webber’s musical about trains (where the actors are on roller skates). This character is the red caboose, and you can see that he has the decals for Penn Central, Great Northern Railway, Baltimore & Ohio, Chessie System, and Pennsylvania Railroad (and he has the Northern Pacific on his hat).

My question to the railroad enthusiasts on tumblr is do you recognize the two black logos? The black diamond on the first and the black square on the second?

youtube

Flying tour of Gripenhem.