Diesel motor unit M275.1 was imported 20pcs  to czechoslovakia  from Hungarian  factory Ganz  in 1955. They had untypical 3 axel truck, which caused several derailments, so the DMUs was used very short time aprox  10 years. Latter  two  unit  was  rebuild  for  troley maintenance purpoces.  In years 1956- 66 they was used/tested on many lines on CSD,  lately  was  moved into depot Ostrava, Brno, Bratislava.  

Model in painting CSD 1960s.