These Rowa (Germany) cars were originally imported by MRC starting back in the 1970s. After MRC got out of the N Scale biz, Con-Cor stepped in as the new importer (selling the cars both RTR and as kits). Later on, Con-Cor attempted to acquire the tooling from Rowa and set up production at Rivarossi. However, said tooling was somehow lost (or perhaps confiscated) and these models subsequently vanished from the face of the earth. These were extremely high quality for the time (having metal window frames, flush windows, close-coupling, end diaphragms, venitian blinds in the windows, and some with interior lighting).
Coach (C&O prototype) -
Pullman 10-6 Sleeper (C&O prototype) -
Slumbercoach (CB&Q prototype) -
Vistadome (B&O prototype) -
Observation (C&O prototype) -