Mining for rock salt, c1890. Miners being lowered down a shaft on rope slings to begin their shift in the salt mine at Wieliczka, Galicia, Poland. The mine is the oldest operational salt mine in the world, having been worked since the 13th century, and consists of 300 kilometres of galleries and some 3000 underground chambers. The salt produced is of very high purity. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Heritage Images / Oxford Science Archive |
Bildgröße: | 3446 px × 5068 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |