I bought this at a new hobby shop I visited. Someone sold off their old scratchbuilt items, and this was among the items, a custom Caboose/Passenger mix car.
It is lettered for the Port Arlene and Drewston Railroad, and the cars name is "Cecilia". Not a bad purchase for 2 bucks! She will be tacked on to the end of local mixed trains, and local passenger trains.
The previous owner built the car on the 12 day of July, 1960.