German submarine (U-boat) pens,1940. A submarine pen is a bunker designed to protect submarines from air attack | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / NEW YORK PUBLIC LIBRARY / EYE ON THE REICH: GERMAN PROPAGANDA PHOTOGRAPHS |
Bildgröße: | 3604 px × 2485 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |