FVQ-F-150165-0000 Portrait of four polishing workers from Orano. Credit: Alinari Archives, Florence WARNING: Permission must be required for non editorial use. Please contact Alinari Archives Photographer: Unidentified Author Date of photography: 1870 - 1890 Place of photography: Algeria, Orano Collection: Alinari Archives, Florence Object type: print on paper Photographic technique: P albumen Dimensioni: 6 X 9,7 cm Technical info Image sizes (pixel): 1604 X 2736 Image sizes (cm at 300 dpi): 13 X 23 Image sizes (MB): 3.10 Color space: RGB