CHA-F-AU0549-0000 Aar Valley in Switzerland with the Zuben Tunnel Credit: Alinari Archives, Florence WARNING: Permission must be required for non editorial use. Please contact Alinari Archives Photographer: Chouanard Henrie Date of photography: 1910-1920 Place of photography: Switzerland Collection: Alinari Archives-Chouanard archive, Florence Object type: magic lantern glass slide Photographic technique: P autochrome Dimensioni: 10 X 12 cm Technical info Image sizes (pixel): 1965 X 2769 Image sizes (cm at 300 dpi): 16 X 23 Image sizes (MB): 8.74 Color space: RGB