Frog lamp
Frog lamp, German oil lamp, used in iron ore mining at Mathilde Mine, Wetzlar Hesse. With crossed ore hammers and "Gluck Auf" motto on brass reflector, late 19th century
Frog lamp, German oil lamp, used in iron ore mining at Mathilde Mine, Wetzlar Hesse. With crossed ore hammers and "Gluck Auf" motto on brass reflector, late 19th century