Prototype: 5 different design express train passenger cars of different types, paint and lettered for the German State Railroad of the GDR DDR (DR/GDR), for the Inter-Zone train D 263 Hamburg - Büchen - Hagenow Land - Schwerin - Wittenberge - Nauen - Potsdam - Doberlug-Kirchhain - Dresden. 1 type Y/B 70 passenger car with a baggage compartment, 2nd class. 2 type Y/B 70 passenger cars, 2nd class. 1 type Y/B 70 passenger car, 1st/2nd class. 1 type WR dining car. The cars look as they did around 1976/77.