At the bottom, the image of the Eagle established as the State emblem of the Republic of Poland. At the sides of the Eagle, the notation of the year of issue: 20-17. Along the rim, an inscription: RZECZPOSPOLITA POLSKA (Republic of Poland) and, following a separating pellet, an inscription: 50 ZŁ. Centrally, on a separated area, an inscription: CASIMIRI / FILIUS / PENULTIMUS, / PRUDENTIA, VICTORIIS, / OPIBUS INSIGNIS, / CAROLI V. CAESARIS, / ET FRANCISCI I. / FRANCORUM REGIS / COAEVUS, ET ILLIS / AEQUIPARATUS. / OB: A.D. 1548. AETAT: 81 ended with a dot. Below the Eagle, on the right, the Mint Mark: m / w.
Centrally, a stylised image of the bust of Sigismund the Elder (in profile), wearing a crown, a lace ruff, armour and a buckled coat; a chain with the Order of the Golden Fleece over King’s neck. At the top, a semi-circular inscription: SIGISMUN-DUS PRIMUS ended with a dot. At the bottom, a signature: I.I.R ended with a dot. On the edge, an inscription: ZYGMUNT I STARY, SKARBY STANISŁAWA AUGUSTA (Sigismund the Elder, Treasures of King Stanislaw August), separated by little stars.
number of subject in the series: 12/24