1⁄12 Thaler - Frederick William

Frederick William, the "Great Elector," spent much of his reign reconstructing Brandenburg-Prussia's shattered economy after the Thirty Years' War, and his coinage reforms of the 1670s were a direct instrument of that project. The 1/12 Thaler denomination was pegged to the Leipzig Foot standard, an attempt to align Brandenburg currency with the broader North German monetary conventions and ease trade friction with neighboring states.

The Schrötter reference running as 857– indicates an open series — multiple die variations documented across the decade-long production window, with minor legend and mintmaster differences still being catalogued.