UTD2881003: Two staff members of the Kaiser Wilhelm Institute for physics in Berlin Dahlem, Germany 1930s (b/w photo) / Bridgeman Images

UTD2881009: Professor Peter Debye (middle), head of the Kaiser Wilhelm Institute for physics in Berlin Dahlem, with family, 1930s (b/w photo) / Bridgeman Images

UTD2881019: Staff members of the Kaiser Wilhelm Institute for physics in Berlin Dahlem inside a research silo, Germany 1930s (b/w photo) / Bridgeman Images

UTD2881029: Vie wto the floor of the research silo at the Kaiser Wilhelm Institute for physics in Berlin Dahlem, Germany 1930s (b/w photo) / Bridgeman Images

UTD2881040: Professor Peter Debye (left), head of the Kaiser Wilhelm Institute for physics in Berlin Dahlem, with staff members, 1930s (b/w photo) / Bridgeman Images

UTD2881041: Professor Peter Debye (middle), head of the Kaiser Wilhelm Institute for physics in Berlin Dahlem, with staff members, 1930s (b/w photo) / Bridgeman Images

UTD2881049: Staff members of the Kaiser Wilhelm Institute for physics in Berlin Dahlem inside a research silo, Germany 1930s (b/w photo) / Bridgeman Images

UTD2881062: Warehouses and magazins at Emden harbor, Germany 1930s (b/w photo) / Bridgeman Images

UTD2881063: Warehouses, flats and magazins at Emden harbor, Germany 1930s (b/w photo) / Bridgeman Images

UTD2881065: Woman with an Audi car at Norddeich, Germany 1930s (b/w photo) / Bridgeman Images

UTD2881068: People in an Audi convertible to the garages at Norddeich, Germany 1930s (b/w photo) / Bridgeman Images

UTD2881077: People in an Audi convertible near Norddeich, Germany 1930s (b/w photo) / Bridgeman Images

UTD2881079: A woman bringing her Audi car to one of the garages at Norddeich, Germany 1930s (b/w photo) / Bridgeman Images

UTD2865543: Guests of a New Year's Eve party, Germany 1930s (b/w photo) / Bridgeman Images

UTD2865553: An excursion to the ski region Reheberg in the Erz Mountains, Germany 1930s (b/w photo) / Bridgeman Images

UTD2865556: An excursion to the ski region Reheberg in the Erz Mountains, Germany 1930s (b/w photo) / Bridgeman Images

UTD2865557: An excursion to the ski region Reheberg in the Erz Mountains, Germany 1930s (b/w photo) / Bridgeman Images

UTD2865575: An excursion to the ski region Reheberg in the Erz Mountains, Germany 1930s (b/w photo) / Bridgeman Images

UTD2865576: An excursion to the ski region Reheberg in the Erz Mountains, Germany 1930s (b/w photo) / Bridgeman Images

UTD2865577: An excursion to the ski region Reheberg in the Erz Mountains, Germany 1930s (b/w photo) / Bridgeman Images

UTD2865580: An excursion to the ski region Reheberg in the Erz Mountains, Germany 1930s (b/w photo) / Bridgeman Images

UTD2865584: An excursion to the ski region Reheberg in the Erz Mountains, Germany 1930s (b/w photo) / Bridgeman Images

UTD2865586: An excursion to the ski region Reheberg in the Erz Mountains, Germany 1930s (b/w photo) / Bridgeman Images

UTD2865588: An excursion to the ski region Reheberg in the Erz Mountains, Germany 1930s (b/w photo) / Bridgeman Images

UTD2865597: Ski region at Feldberg in the Black Forest, Germany 1930s (b/w photo) / Bridgeman Images

UTD2865605: Ski region at Feldberg in the Black Forest, Germany 1930s (b/w photo) / Bridgeman Images

UTD2865621: Ski region at Feldberg in the Black Forest, Germany 1930s (b/w photo) / Bridgeman Images

UTD2865629: Ski region at Feldberg in the Black Forest, Germany 1930s (b/w photo) / Bridgeman Images

UTD2865633: Ski region at Feldberg in the Black Forest, Germany 1930s (b/w photo) / Bridgeman Images

UTD2865639: Ski region at Feldberg in the Black Forest, Germany 1930s (b/w photo) / Bridgeman Images

UTD2865642: Ski region at Feldberg in the Black Forest, Germany 1930s (b/w photo) / Bridgeman Images

UTD2865644: Ski region at Feldberg in the Black Forest, Germany 1930s (b/w photo) / Bridgeman Images

UTD2865652: Ski region at Feldberg in the Black Forest, Germany 1930s (b/w photo) / Bridgeman Images

UTD2865653: Church of Titisee, Germany 1930s (b/w photo) / Bridgeman Images

UTD2865655: Ski region in the Black Forest, Germany 1930s (b/w photo) / Bridgeman Images

UTD2865660: Ski region at Feldberg in the Black Forest, Germany 1930s (b/w photo) / Bridgeman Images