Teschen's 24 Kreuzer issues of 1621–22 fall squarely within the Kipper- und Wipperzeit, the currency debasement crisis that swept the Holy Roman Empire during the early Thirty Years' War. Mints across Silesia and Bohemia were racing to produce overvalued, underweight coinage before neighboring territories caught on and refused acceptance. Frederick William's participation was brief — Teschen was a minor duchy with limited minting infrastructure — which keeps surviving examples genuinely scarce.
Teschen's 24 Kreuzer issues of 1621–22 fall squarely within the Kipper- und Wipperzeit, the currency debasement crisis that swept the Holy Roman Empire during the early Thirty Years' War. Mints across Silesia and Bohemia were racing to produce overvalued, underweight coinage before neighboring territories caught on and refused acceptance. Frederick William's participation was brief — Teschen was a minor duchy with limited minting infrastructure — which keeps surviving examples genuinely scarce.