Historical information

The carbon rods were either used by 'Gem Pictures' or in the study of 'Electricity and Magnetism' at the Ballarat School of Mines. In electricity a current is conducted through carbon rod between the electrode holder and the arc in carbon arc lighting or welding. A carbon rod is also used in batteries.

Physical description

A tin full of carbon rods

Inscriptions & markings

On box found with carbon rods:
"Siemens-Planiawerke
aktiengesellaschaft fur kohlefabrikate berline-Lichtenberg
Made in Germany

jede kohle trägt unseren vollen firmenstempel

Translation:
Siemens Planiawerke
A corporation limited by shares producing carbon in Berlin-Lichtenberg

Each carbon carries our full company stamp