RNA-F-610417-0000 Russian revolution: barricades in Petrograd road (St. Petersburg) in October 1917 Credit: Sputnik/ Alinari Archives WARNING: Permission must be required for non editorial use. Please contact Alinari Archives Place of photography: Russia, St. Petersburg Event: Russian Revolution, March-November 1917 Collection: Sputnik/ Alinari Archives Object type: digital image Photographic technique: P digital image Technical info Image sizes (pixel): 4500 X 3456 Image sizes (cm at 300 dpi): 38 X 29 Image sizes (MB): 3.07 Color space: RGB