SZT3004866: Austro-Hungarian signal men lay telephone cables, 1917 (b/w photo) / Bridgeman Images

SZT3004869: German captive balloon is made ready for ascension in 1915 (b/w photo) / Bridgeman Images

SZT3004870: German naval aviator attack an English U-boat in the 1st World War (b/w photo) / Bridgeman Images

SZT3004873: State refugee care in Austria-Hungary in, 1918 (b/w photo) / Bridgeman Images

SZT3004882: Austro-Hungarian searchlight traction in Italy, 1915 (b/w photo) / Bridgeman Images

SZT3004887: Bread provision of the Austro-Hungarian troops, 1915 (b/w photo) / Bridgeman Images

SZT3004890: Austrian troops have entrenched themselves at Lviv in 1914 (b/w photo) / Bridgeman Images

SZT3004891: Belgian armored train 1914 (b/w photo) / Bridgeman Images

SZT3004892: Russian troops celebrate the conquest of Lviv in 1914 (b/w photo) / Bridgeman Images

SZT3004895: Start of a German captive balloon on the Western Front, 1915 (b/w photo) / Bridgeman Images

SZT3004896: German searchlight position in the 1st World War (b/w photo) / Bridgeman Images

SZT3004897: A German Fighter Plane above the Western Front, 1918 (b/w photo) / Bridgeman Images

SZT3004915: Austro-Hungarian troops cross a lake, 1917 (b/w photo) / Bridgeman Images

SZT3004917: Italian prisoners on the Isonzo front, 1917 (b/w photo) / Bridgeman Images

SZT3004939: Mobilization in Poland, 1939 (b/w photo) / Bridgeman Images

SZT3004941: Walther von Brauchitsch during a front visit in Poland, 1939 (b/w photo) / Bridgeman Images

SZT3004942: Walther von Brauchitsch, 1940 (b/w photo) / Bridgeman Images

SZT3004947: Dr. Kurt Schuschnigg (b/w photo) / Bridgeman Images

SZT3004949: Walther Nernst (b/w photo) / Bridgeman Images

SZT3004955: Work by Ernst Barlach / Bridgeman Images

SZT3004956: Subhas Chandra Bose, 1931 (b/w photo) / Bridgeman Images

SZT3004963: Theater scene by Ernst Barlach (b/w photo) / Bridgeman Images

SZT3004986: Paul von Hindenburg with children in Dietramszell (b/w photo) / Bridgeman Images

SZT3004992: Adolf Hitler with Verena Wagner and Julius Schaub (b/w photo) / Bridgeman Images

SZT3004994: Joseph Haydn (b/w photo) / Bridgeman Images

SZT3004997: Nikola Tesla (b/w photo) / Bridgeman Images

SZT3005007: Imperial maneuvers in the presence of Emperor Wilhelm II, 1913 (b/w photo) / Bridgeman Images

SZT3005011: Ernst Lubitsch paddling in a canoe on Lake Arrowhead (b/w photo) / Bridgeman Images

SZT3005012: Ernst Lubitsch photographing his family, 1927 (b/w photo) / Bridgeman Images

SZT3005019: German machine gunner with MG 34 on the Eastern Front, 1941 (b/w photo) / Bridgeman Images

SZT3005027: German anti-aircraft soldier on guard, 1942 (b/w photo) / Bridgeman Images

SZT3005031: German soldiers await the order to attack, 1943 (b/w photo) / Bridgeman Images

SZT3005033: Johann Peter Hebel (b/w photo) / Bridgeman Images

SZT3005035: Thomas J. Watson and Crown Prince Gustaf Adolf of Sweden (b/w photo) / Bridgeman Images

SZT3005038: Heinz Guderian honors soldiers, 1945 (b/w photo) / Bridgeman Images

SZT3005041: Heinz Guderian at a briefing, 1941 (b/w photo) / Bridgeman Images