The Probert Encyclopaedia of Money

THALER

The thaler was a German silver coin, first struck at Joachimsthal, Bohemia bout 1519, worth about three shillings sterling, and until 1873, when it was superseded by the mark, the currency of Germany. The thaler was divided into thirty silbergroschen, each of twelve pfennigs. From the name thaler derives the word dollar.
Research Thaler