UTD2882008: Sister duo Hedi and Margot Hoepfner, Germany 1930s (b/w photo) / Bridgeman Images

UTD2882037: Director Hans H. Zerlett with sister duo Hedi and Margot Hoepfner, Germany 1930s (b/w photo) / Bridgeman Images

UTD2882055: Sister duo Hedi and Margot Hoepfner, Germany 1930s (b/w photo) / Bridgeman Images

UTD2882064: Sister duo Hedi and Margot Hoepfner, Germany 1930s (b/w photo) / Bridgeman Images

UTD2882071: Sister duo Hedi and Margot Hoepfner, Germany 1930s (b/w photo) / Bridgeman Images

UTD2880007: Mother and child doing handicrafts, Germany 1930s (b/w photo) / Bridgeman Images

UTD2880009: A little boy watering the flowers, Germany 1930s (b/w photo) / Bridgeman Images

UTD2880029: Extraction of bee venom at Mack pharmceutical company at Illertissen, Germany 1930s (b/w photo) / Bridgeman Images

UTD2880055: House at the countryside, Germany 1930s (b/w photo) / Bridgeman Images

UTD2880063: On Reichsautobahn highway, Germany 1930s (b/w photo) / Bridgeman Images

UTD2880075: A bus passing a Reichsautobahn highway roadhouse, Germany 1930s (b/w photo) / Bridgeman Images

UTD2880089: A young woman unlocking the folding roof of her convertible, Germany 1930s (b/w photo) / Bridgeman Images

UTD2880099: A young woman relaxing on the backseat of her convertible, Germany 1930s (b/w photo) / Bridgeman Images

UTD2880123: View to the lorries of the lime stone pit at Ruedersdorf near Berlin, Germany 1930s (b/w photo) / Bridgeman Images

UTD2880135: Power shovel for diging lime stone at the pit in Ruedesdorf near Berlin, Germany 1930s (b/w photo) / Bridgeman Images

UTD2880153: Female staff members doing the laundry of Mitropa travel pillows, Germany 1930s (b/w photo) / Bridgeman Images

UTD2880169: A staff member of the Mitropa sharing out the famous Mitropa travel pillows at the gate of a staion, Germany 1930s (b/w photo) / Bridgeman Images

UTD2880173: Mitropa staff members loading sacks of laundry, Germany 1930s (b/w photo) / Bridgeman Images

UTD2880203: Entrance of the Heinrich Hertz institute for oscilation science at Berlin Charlottenburg, Germany 1930s (b/w photo) / Bridgeman Images

UTD2880248: A young woman leaning at a chair, Germany 1930s (b/w photo) / Bridgeman Images

UTD2880262: Zeppeilin Hindenburg LZ 129 at its olympic ride over Reichssportfeld sports ground in Berlin, Germany 1930s (b/w photo) / Bridgeman Images

UTD2880277: View to Berlin Victory Column, Germany 1930s (b/w photo) / Bridgeman Images

UTD2880012: A little boy watering the flowers, Germany 1930s (b/w photo) / Bridgeman Images

UTD2880051: Extraction of bee venom at Mack pharmceutical company at Illertissen, Germany 1930s (b/w photo) / Bridgeman Images

UTD2880060: On Reichsautobahn highway Munich Salzburg, Germany 1930s (b/w photo) / Bridgeman Images

UTD2880061: On Reichsautobahn highway Munich Salzburg, Germany 1930s (b/w photo) / Bridgeman Images

UTD2880092: A young woman relaxing in her convertible, Germany 1930s (b/w photo) / Bridgeman Images

UTD2880088: A young woman unlocking the folding roof of her convertible, Germany 1930s (b/w photo) / Bridgeman Images

UTD2880130: View to the locomotives for the lorry trains of the lime stone pit at Ruedersdorf near Berlin, Germany 1930s (b/w photo) / Bridgeman Images

UTD2880142: Staff members of a lime sand brick company preparing a blasting, Germany 1930s (b/w photo) / Bridgeman Images

UTD2880163: Female staff members ironing the laundry of Mitropa travel pillows, Germany 1930s (b/w photo) / Bridgeman Images

UTD2880170: Staff members charging equipment for the Mitropa pullman car, Germany 1930s (b/w photo) / Bridgeman Images

UTD2880171: Staff members charging equipment for the Mitropa dining car, Germany 1930s (b/w photo) / Bridgeman Images

UTD2880182: German engineer and inventor Ferdinand Porsche taking photos at Berlin AVUS race track, Germany 1930s (b/w photo) / Bridgeman Images

UTD2880212: Scientific staff members with a test arrangement at a laboratory, Germany 1930s (b/w photo) / Bridgeman Images

UTD2880211: Chemical reaction at a test arrangement, Germany 1930s (b/w photo) / Bridgeman Images