16th Century mine ventilation. Historical artwork showing three different methods used to ventilate mines during the 16th Century. Published in 1556 | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Library of Congress |
Bildgröße: | 3307 px × 5357 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |