Set (1): Three express train coaches for the long distance train F 21 "Rheinpfeil" of the Deutsche Bundesbahn.

The set contains a 1st class open seating coach, type Ap4üm, a 1st class compartment coach, type Av4üm and an observation coach, type AD4üm.

■ Pulpit of the observation coach with four sections
■ Raised lettering "DEUTSCHE BUNDESBAHN" under the observation pulpit
■ Operation condition: 1963
■ Train route: Munich - Dortmund