19th Century asphalt and bitumen production. 1880 illustration of a man working an oven and boiler used to produce asphalt and bitumen. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Collection Abecasis |
Bildgröße: | 4973 px × 3514 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |