German World War I amp meter for checking phone line conections and testing electrical wires and equipment.
Telegrapher's Apm meter in pouch
Manufacturer stamp Frnz Cobal Berlin 1916
Elementprüfer
Elementprüfer in Tasche
Elementprüfer Manual instruction
The amp meters were generally used by telegrapher units but probably each technical unit (pioneer units as well) has such kind of the equipment in its range. The leatherpouch is mark Frnz Cobal Berlin 1916. Inside the pouch is an manual instruction how to use it.
