Prototype: A type Post mr-a railroad postal car for the German Federal Postal System (DBP), used on the German Federal Railroad (DB). Version of the railroad postal car as a general-purpose railroad postal car with an exhaust hood for a coal oven, side air intake fins, and air changeover equipment. Car routing: Ulm – Friedrichshafen/Ravensburg. Chrome oxide green paint scheme. The cars look as they did around 1978.
Model: The type Post mr-a railroad postal car is completely new tooling. This is a version of the railroad postal car as a general-purpose postal car with type 330 heavy Minden-Deutz (MD) trucks with a type D 150 cardan shaft generator on the right side of the car on both trucks. 7319 current-conducting coupling drawbars or 72022 current-conducting close couplers can be installed on both cars. 73410/73411 and a 66716 pickup set can be installed on both cars. The cars have underbodies specific to the car types. Both cars have imprinted car route sides. The minimum radius for operation is 360 mm / 14-3/16. Total length over the buffers 28.2 cm / 11-1/8. AC wheelset E700150.

Passenger car sets to go with these cars can be found in the Märklin H0 assortment at Ajckids.com under item numbers 42850 and 43936.