⅙ Thaler - Frederick William

Frederick William — the "Great Elector" — was in the middle of restructuring Brandenburg-Prussia's finances and military after the devastation of the Thirty Years' War when this issue was struck. The fractional thaler denominations of the early 1660s were partly a response to chronic small-change shortages across the German states, exacerbated by decades of wartime coin debasement by multiple belligerents.

Schrötter 242 places this among the issues of the Minden or Halberstadt mints, territories only recently consolidated under Hohenzollern control following the Peace of Westphalia in 1648.