For leight shunting duties BDZ ordered between 1965 and 1983 293 diesel-hydraulic locomotives of the class 52 built by LEW in Henningsdorf (Germany). This four coupler is similar to the DR class 105 and 106. Loco 52.061-9 is waiting the next shunting movement on Sofia main station on 4th january 1997. Photo and scan by Theo Stolz