Got this in 2011 Kunker Auction (my first ever coin from Kunker) Trier/ Erzbistum AV Goldgulden ND struck 1365 Kolbenz Mint mm. Crossed Keys Archbishop Kuno II Von Falkenstein 1362-88 3.59g. 22mm. .986 Obverse: St. John the Baptist Reverse: Arms of Trier Trier like many of the Cities/ towns in Germany where ruled by the Roman Catholic Church. However they where under the rule of the Holy Roman Emperor.