Refining copper: removing cakes of copper from the crucible and quenching in a tub of water. From Agricola De re metallica,Basle,1556. Woodcut | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / UIG / Universal History Archive |
Bildgröße: | 4550 px × 7680 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |