Prototype: four-axle conversion car 1st/2nd class AByg 503 of the German Federal Railways (DB). Version from around 1984 in chrome oxide green livery featuring the coats of arms of Aichstetten, Bisingen, Hechingen, and Marstetten-Aitrach for use on the Allgäu-Zollern Railway. Model: Car with kinematics for short coupling and with Minden-Deutz lightweight bogies. Prepared for the subsequent installation of interior lighting. Length over buffers 122 mm. The matching interior lighting: 66638 LED interior lighting. You can create a prototypical train with the locomotive of series 215 item number 16254 and the local transport cars 18453 and 18455.