Vierer
also called Quadrans and Etschvierer, was a silver coin current in the Holy Roman Empire, Tyrol, and Southern Germany from the thirteenth to the sixteenth centxiry.
It had a value of four Berner (q.v.), hence its name, and was equal to one fifth of a Kreuzer. There is one of Graz, dated as early as 1445. See Frey, The Dated European Coinage Prior to 1501 . 1914. (No. 72).
Synonyms: Fierer
Source: Frey's Dictionary (American Journal of Numismatics, Vol. 50, 1916)