AVQ-A-000721-0004 The new channeling of the Marino river mouth, done in relation to the maintenance work for the Tronto river, from Ascoli Piceno to the sea Credit: Alinari Archives, Florence WARNING: Permission must be required for non editorial use. Please contact Alinari Archives Photographer: Unidentified Author Date of photography: 1931 ca. Place of photography: Ascoli Piceno Collection: Alinari Archives-album collection, Florence Object type: photomechanic print Photographic technique: P photomechanics Dimensioni: 18,2 x 23,5 cm Technical info Image sizes (pixel): 2604 X 1913 Image sizes (cm at 300 dpi): 22 X 16 Image sizes (MB): 4.52 Color space: RGB