The National Bank of Poland presents a coin struck to commemorate the 100th Anniversary of the 3rd Silesian Uprising. The coin was struck from 15.5 grams of 900 gold. The reverse presents a silhouette of two insurgents operating a captured German Maxim heavy machine gun, 1908 model. Next to it there is an insurgent banner with the inscription "Tobie Polsko" ("To Poland") and an image of the insurgent eagle. It was made at the beginning of 1920 in a workshop at the editorial office of "Katolik" magazine in Bytom. The banner was hidden for years by Alojzy Szulc, a participant in three Silesian uprisings, who sold it in May 1968 to the Museum of Insurgent Deeds on Góra Świętej Anny (St. Anne's Mountain), where it is one of the most valuable exhibits. The Third Silesian Uprising took place on the night of 2 to 3 May 1921 and was a reaction to the news of the planned concession of most of the industrialised part of Upper Silesia to Germany. It was preceded by a general strike in almost all industrial plants.