APA-F-012326-0000 Patients at the Psychiatric Hospital of San Salvi, in Florence at work in the fields surrounding the institute Credit: Alinari Archives, Florence WARNING: Permission must be required for non editorial use. Please contact Alinari Archives Photographer: Alinari, Fratelli Date of photography: 09/1929 Place of photography: Florence Collection: Alinari Archives-Alinari Archive, Florence Object type: glass plate Photographic technique: N silver gelatin dry negative Dimensioni: 21 x 27 cm Technical info Image sizes (pixel): 6054 X 4724 Image sizes (cm at 300 dpi): 51 X 39 Image sizes (MB): 13.74 Color space: sRGB