Model: The cars have a close coupler mechanism. Total length over the buffers 300 mm / 11-13/16".
Prototype: German Federal Railroad (DB) express train passenger car set consisting of a type WR4ü express train dining car and a type Pw4ü-37 (car number 105 817) express train baggage car around 1952. Train route: Hamburg - Cologne.
You can make up a prototypical train by adding the 16032 class 03 locomotive, the 18287 express train passenger car set, and the 18486 and 18487 express train passenger cars, 3rd class.