WROCLAW, POLAND - MAY 11, 2013: EN 57 Class EMU belonging to przewozy regionalne Polregio on a suburban service in a train station in the outskirts of Stock Photo - Alamy
PKP Cargo to take stake in Pol-Miedź Trans | News | Railway Gazette International
Stalowa Wola, Poland - April 29, 2018: Train Class EN57 Of Polregio, An Electric Multiple Unit Used By The Polish Railway Operator PKP, At The Stalowa Wola Station. Stock Photo, Picture And
PKP SM42 329, Gdynia Główna, 21-08-17 | Carrying the new Pol… | Flickr