(Święto Konstytucji 3 Maja). In die-stamped silvered brass, unmarked, known to have been designed by Antoni Stanisław Procajłowicz (1876-1949), illustrating the crowned Polish eagle above the inscription "3 MAJA 1791 1917" (3 May 1791-1917), all of which is framed within a decorative shield, measuring 37 mm (w) x 42.8 mm (h), vertical pinback, very light contact, near extremely fine.
Footnote: 3 May Constitution Day (AKA 3rd May National Holiday) is a Polish national and public holiday that takes place on May 3rd each year. The holiday celebrates the declaration of the Constitution of May 3, 1791. Festivities date back to the Duchy of Warsaw early in the nineteenth century, but it became an official holiday only in 1919 in the Second Polish Republic. Delisted during the times of the Polish People's Republic, it was re-established after the fall of communism in modern Poland. The Constitution of May 3, 1791 is considered one of the most important achievements in the history of Poland, despite being in effect for only a year, until the Russo-Polish War of 1792. Historian Norman Davies calls it "the first constitution of its type in Europe"; other scholars also refer to it as the world's second oldest constitution.