Hey ! I have a vintage 1780 M.T. thaler that I need help with. It is not listed in the Hafner reference. It has missing cross bars in the letter H in 3 places (2 obverse . IIU . and TIIERESA and 1 reverse ARCIIID . The coin is well worn, so determining mint and date range is next to impossible What is left of the design 
eelements have that old
style look. Any help would be appreciated. Thanks. TC
