Three WWII Seaplane Photographs

Three WWII Seaplane Photographs - Black and white, gloss finish. The first inscribed "Ru Superwal" on the reverse, 120 mm x170 mm; the second inscribed "Dornier Superwal" on the reverse, 120 mm x 167 mm; the third inscribed "2465 Rohrback-Rocco, ROHRBACH METAL AEROPLAN CO. A/*. KOBENHAVN. Ro-Rollo" on the reverse, 111 mm x 166 mm. All three stamped "Dr. v. Langsdorff Furstenfeldbruck b/Munchen Jakeb Gross-Str. 4" on the reverse, slight age curling, extremely fine.