UTD2892280: A visitor group on a guided tour at the showmine Zeche Oberhausen, Germany 1930s (b/w photo) / Bridgeman Images

UTD2892281: A visitor group on a guided tour at the showmine Zeche Oberhausen, Germany 1930s (b/w photo) / Bridgeman Images

UTD2892282: A visitor group on a guided tour at the showmine Zeche Oberhausen, Germany 1930s (b/w photo) / Bridgeman Images

UTD2892289: A visitor group on a model of the showmine Zeche Oberhausen, Germany 1930s (b/w photo) / Bridgeman Images

UTD2892299: A visitor group on a guided tour at the showmine Zeche Oberhausen, Germany 1930s (b/w photo) / Bridgeman Images

UTD2892315: Portrait of a motorist, Germany 1930s (b/w photo) / Bridgeman Images

UTD2892320: Portrait of a motorist, Germany 1930s (b/w photo) / Bridgeman Images

UTD2892323: Portrait of a motorist in front of his Hanomag truck, Germany 1930s (b/w photo) / Bridgeman Images

UTD2892332: Portrait of a motorist in front of his truck, Germany 1930s (b/w photo) / Bridgeman Images

UTD2892333: Portrait of a motorist in front of his truck, Germany 1930s (b/w photo) / Bridgeman Images

UTD2893349: A policeman strewing chalk to a petrol track at a traffic accident, Germany 1930s (b/w photo) / Bridgeman Images

UTD2893351: A policeman strewing chalk to a petrol track at a traffic accident, Germany 1930s (b/w photo) / Bridgeman Images

UTD2893353: A policeman checking a driving licence at a traffic accident, Germany 1930s (b/w photo) / Bridgeman Images

UTD2893356: A policeman checking a driving licence at a traffic accident, Germany 1930s (b/w photo) / Bridgeman Images

UTD2893359: A policeman strewing chalk to a petrol track at a traffic accident, Germany 1930s (b/w photo) / Bridgeman Images

UTD2893360: Curious onlookers gathering at a traffic accident, Germany 1930s (b/w photo) / Bridgeman Images

UTD2893363: Curious onlookers gathering at a traffic accident, Germany 1930s (b/w photo) / Bridgeman Images

UTD2893364: Curious onlookers gathering at a traffic accident, Germany 1930s (b/w photo) / Bridgeman Images

UTD2893372: Policemen reconstructing a traffic accident, Germany 1930s (b/w photo) / Bridgeman Images

UTD2893395: Mother and son listening to the radio at the kitchen, Germany 1930s (b/w photo) / Bridgeman Images

UTD2893397: Mother and son listening to the radio at the kitchen, Germany 1930s (b/w photo) / Bridgeman Images

UTD2893401: Radio on a desk of a man, Germany 1930s (b/w photo) / Bridgeman Images

UTD2893402: Radio on a desk of a man, Germany 1930s (b/w photo) / Bridgeman Images

UTD2893403: Radio on a desk of a man, Germany 1930s (b/w photo) / Bridgeman Images

UTD2893406: Mother and son listening to the radio at the living room, Germany 1930s (b/w photo) / Bridgeman Images

UTD2893407: Mother and son listening to the radio at the living room, Germany 1930s (b/w photo) / Bridgeman Images

UTD2893411: A family listening to the radio, Germany 1930s (b/w photo) / Bridgeman Images

UTD2893412: A family listening to the radio, Germany 1930s (b/w photo) / Bridgeman Images

UTD2893417: Radio on a desk of a woman, Germany 1930s (b/w photo) / Bridgeman Images

UTD2893418: Radio on a desk of a woman, Germany 1930s (b/w photo) / Bridgeman Images

UTD2893423: A family listening to the radio, Germany 1930s (b/w photo) / Bridgeman Images

UTD2893424: radio brings music for dancing, Germany 1930s (b/w photo) / Bridgeman Images

UTD2893426: A woman sitting at the dressing table while listening to the radio, Germany 1930s (b/w photo) / Bridgeman Images

UTD2893430: A woman listening to the radio, Germany 1930s (b/w photo) / Bridgeman Images

UTD2893432: Radio on the bedside table, Germany 1930s (b/w photo) / Bridgeman Images

UTD2893435: A woman sitting at the dressing table while listening to the radio, Germany 1930s (b/w photo) / Bridgeman Images