19th Century road laying. 1880 illustration of men using an asphalt (bitumen) boiler while laying a road surface. Asphalt is a highly viscous liquid or semi-solid form of petroleum. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Collection Abecasis |
Bildgröße: | 3803 px × 2510 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |