A distinctive thaler with an artistic portrait of the king, popularly known as an "armorial." A coin whose minting "in addition to its economic value, also had a prestigious significance," as Janusz Parchimowicz points out.
An important issue with a rich history, whose creation was preceded by a competition with a series of trials, resulting in stamps made by the outstanding medallicist of the era - Jan Filip Hollzhaeuser. You can read their story on the SAP Silver Coins blog, among others.
Nice.