Search for: [Subject = Fotografia polska] OR [Subject = Mrągowo \(woj. warmińsko\-mazurskie\)] OR [Subject = Robotnicy] OR [Subject = Klasa robotnicza] OR [Subject = Betoniarka] OR [Subject = Maszyny] OR [Title = \[Robotnicy. 3\]] OR [Creator = Autor fotografii nieznany]
