Prototype: Four-axle express train car B4üwe, 2nd class (standard design from 1928 to 1930) of the German Federal Railways (DB). Bottle green base color. With a curved roof, end-mounted access ladders, and bellows transitions. Operational condition of the era IIIb. Model: Detailed execution in full length scale. Minimum radius of 360 mm. Görlitz II heavy type bogies. End-mounted access ladders and attached grab bars. Multicolored interior design. Prepared for the installation of powered coupling rods 7319 or powered short couplings 72022, collector 73406, and LED interior lighting 73410/73411. Length over buffers 25.0 cm. DC wheelset E700600. The matching new construction of the express steam locomotive 18 323 can be found under item number 38323, also in the Märklin H0 range.