River bridge construction. Pile driver and a caterpillar-tracked tractor being used to drive support columns into a riverbed for a bridge that is under construction. This photograph,dating from 1942,is from the United States Office of War Information | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Library of Congress |
Bildgröße: | 4577 px × 3833 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |