Obverse: An image of a półkopek - 30 groszy, the first Polish zloty with the image of the king Zygmunt II. In the middle, on the left, the inscription SIGIS / AUG / REX / POLO (Zygmunt August King of Poland). On the right, the inscription M.DUX / LIT 1545-1572 (Grand Duke of Lithuania).
Reverse: The Union of Lublin with seals and the inscription UNIO LVBLIN INITA (Union of Lublin concluded). Above the act, there are the coats of arms of Poland and Lithuania, crowned with a Renaissance crown. At the bottom, the name of the issuer and the series NR 11, year 80.
