ULL-F-809964-0000 Sport and leisure: group of girls on roller skates Credit: Haeckel Archiv / Ullstein Bild / Alinari Archives WARNING: Permission must be required for non editorial use. Please contact Alinari Archives Date of photography: 1910 ca. Collection: Ullstein Bild / Alinari Archives Object type: digital image Photographic technique: P digital image Technical info Image sizes (pixel): 2480 X 1804 Image sizes (cm at 300 dpi): 20 X 15 Image sizes (MB): 0.93 Color space: RGB