Portugał koronny - Sigismund III Vasa Wilno mint

The portugał — named after the Portuguese gold cruzado trade coins that inspired its weight standard — was never a commercial denomination in any practical sense. Sigismund III issued these almost exclusively as presentation pieces, distributed as diplomatic gifts and royal largesse rather than circulated currency. The Vilnius mint produced them in extremely limited numbers, and examples from that workshop are substantially rarer than their Warsaw or Kraków counterparts.

Kopicki 3570 is among the more elusive references in the Commonwealth gold series. The 1618 date places this piece squarely in the period of Sigismund's aggressive interventionism in Muscovite affairs following the Time of Troubles.