Poland. 20 Złoty 2019, Jan Sobieski's Szostak, History of Polish Coins, by Dominika Karpińska-Kopiec, Mennica Polska S.A., Parchimowicz 1485, Silver 38,61 mm, weight 28,28 g. .925, Condition Proof, coin in capsule and original NBP box, certificate of authenticity