The 50 series, probably the most important DB steam locomotive of the 1950 years with a lot of design variants, had proved itself before almost all types of trains on the main and branch lines. After all, more than 60 essential variants ensured that hardly a 50s had a completely identical appearance with a sister locomotive. The 1'E goods train locomotives built in around 3,100 copies from 1939 were considered robust, efficient, easy to maintain and extremely reliable. After 1945, more than 2,000 locomotives remained with the German Federal Railways. The machines reached a maximum speed of 80 km/h, performed approx. 1,200 kW and had an axle load of 15 t.At the introduction of the EDP model series scheme in 1968, 1,452 machines were still in the stock of DB Since the serial number was only allowed to have three digits, the designations 051, 052 and 053 were introduced in addition to the series number 050.This text is machine translated.