¼ Thaler - Ferdinand I Joachimsthal

The Joachimsthal mint in northwestern Bohemia gave the world the word "dollar" — Joachimsthaler, shortened to thaler, eventually corrupted into dollar through Dutch and English trade usage. Ferdinand I, ruling Bohemia as part of the broader Habsburg inheritance, maintained the mint as a crown operation after seizing it from the Schlick family, who had originally established it in 1519 and turned it into one of the most prolific silver-producing operations in Central Europe.

The 1546–1548 window coincides almost exactly with the Schmalkaldic War, Ferdinand's effort alongside his brother Charles V to crush the Lutheran princes. Military expenditure was enormous, and Joachimsthal output was directly tied to financing Habsburg campaigns.