Kriegsfunfer Öffentlichkeit Deposited
The popular name for the five Pfennig piece struck by the German Government in 1915. They are made of iron instead of nickel, and to protect the iron against rusting the coins have been subjected to a special zinc treatment, called " sherardisiert," named after Sherard, the inventor of the process.
- Frey's Dictionary (American Journal of Numismatics, Vol. 50, 1916)