Julius Ferdinand Hann, c1921. Portrait of Hann (1839-1921) from a commemorative medal issued by the Austrian Meteorological Society. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Heritage Images / Oxford Science Archive |
Bildgröße: | 4218 px × 4139 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |