I have three items: I have always had a fascination for the Railway Express Agency and the Railway Mail Service. I would love an operating RPO where the crew throws the bag down and then grabs the pouch off the mail stand.
And then how about some Sperry Rail Service Hi-Rail Truck and a test car. In the SRS livery these would look really sharp!
And anything for the North Pole Central passenger train, love a GG-1 or a nice F3 AA set in the red & green scheme!
All photos courtesy of the Internet.