Struck, silver plated with some gilding (as noted below), diameter 70 mm.

Obverse: at centre, logo of the XVI International Numismatic Conference;
above, in the background, an element of the Royal Castle in Warsaw;
below, selected Polish coins: (from left) Cracow groschen of Casimir III the Great;
Glogau groschen of Sigismundus I the Old, 100 Polish złoty from 1925 (gilt); 10 ducats of Sigismundus III Vasa, Riga (gilt);
obverse and reverse of a PRINCES POLONIE denar of Bolesław Chrobry.

Reverse: Stylised hands holding 100 ducats of Sigismundus III Vasa issued in 1621 (gilt)

Legend around: above, XVI INTERNATIONAL NUMISMATIC CONGRESS, below POLAND 11-16.IX.2022.