1 Öre 'Klippingar' - Gustav II Adolf Säter or Nyköping mint

Klippingar — square-cut emergency copper coins — were a direct consequence of Sweden's aggressive early-17th-century military expansion, which demanded enormous quantities of small-denomination coinage faster than round planchet production could supply. The Säter and Nyköping mints both struck this type during 1625–1627, and attributing a given piece to one facility or the other relies almost entirely on minor die characteristics rather than any mint mark system.

Gustav II Adolf's copper coinage policy was itself rooted in Sweden's near-monopoly on Baltic copper — Falun mine output was being weaponized as monetary policy to flood Europe with Swedish metal.