PDC-F-002077-0000 Reproduction of an engraving of the Blue Grotto on the Island of Capri. Inside the grotto three men, on the edge of a ledge, are greeting a fourth man, coming out of the grotto with his boat. He is probably a boatman Credit: Alinari Archives, Florence WARNING: Permission must be required for non editorial use. Please contact Alinari Archives Photographer: Sommer, Giorgio Date of photography: 1870-1880 ca. Collection: Alinari Archives-Palazzoli collection, Florence Object type: print on paper Photographic technique: P albumen P hand colouring Dimensioni: 195 x 244 mm Technical info Image sizes (pixel): 3207 X 2480 Image sizes (cm at 300 dpi): 27 X 20 Image sizes (MB): 4.85 Color space: RGB