10-Ducat Presentation Piece of Sigismund III of Poland (1584-1632) 1614 Gold diameter 47.5 mm, weight 35.09 g The dies of the donativ (from the Latin donatio meaning ‘a gift, present') were made by the outstanding medallist Samuel Ammon, who worked in the 1st quarter of the 17th century in Gdansk. It took him and his apprentices two years of intensive work to make the dies for these coins, which were apparently minted to commemorate the birth of Sigismund's son, Prince Alexander.