⅙ Thaler - John Frederick I

John Frederick I ruled Württemberg through the opening years of the Thirty Years' War, and this fractional issue belongs to that period of acute monetary chaos. The Kipper- und Wipperzeit — the great debasement crisis of roughly 1619–1623 — had flooded the Empire with underweight, debased coinage as mints across the German states competed to shave metal and pass bad coins on to neighbors. The ⅙ Thaler appeared as that crisis was collapsing, part of a broader recoinage effort to restore credible silver fractions to circulation.

Württemberg's mint at this period was operating under severe fiscal strain, the duchy already struggling to fund obligations as imperial conflict consumed resources.