ULL-F-873266-0000 Pope Pius XI (Achille Ratti, 1857-1939) on the opening day of Vatican Radio; behind the physicist and inventor Guglielmo Marconi (1874-1937) and to his right, Cardinal Eugenio Pacelli, the future Pope Pius XII Credit: Ullstein Bild / Alinari Archives WARNING: Permission must be required for non editorial use. Please contact Alinari Archives Date of photography: 12/02/1931 Place of photography: State of the Vatican City People: Marconi Guglielmo (scientist, Nobel Prize for Physics 1909), Pius XI Ratti Achille (pope) Collection: Ullstein Bild / Alinari Archives Object type: digital image Photographic technique: P digital image Technical info Image sizes (pixel): 3715 X 4960 Image sizes (cm at 300 dpi): 31 X 41 Image sizes (MB): 4.48 Color space: RGB