: at the bottom, a stylised reverse of the szóstak featuring: a crown at the top, the numeral VI below it and three escutcheons with the coats-of-arms of Poland, Lithuania and Janina of the Sobieskis, the year 1682 in the bottom part; along the rim, an inscription: «GROS·ARG·SEX REG·POLONIAE». On the left, the image of the Eagle established as the state emblem of the Republic of Poland; an inscription along the rim: «RZECZPOSPOLITA POLSKA» (Republic of Poland), and a notation of the year of issue: «2019»; below the Eagle, an inscription: «20 ZŁ» and, below the Eagle, on the right, the Mint mark, «m/w». At the top, a fragment of the bas-relief from Wilanów Palace showing Hetman Jan Sobieski on horseback before the royal coronation.
Reverse: on the left, a stylized obverse of the six-grosz coin featuring the bust of John Sobieski wearing a laurel wreath and turned to the right; along the rim an inscription: «IOAN·III D G REX POL·M·D·L·R·P», and an inscription at the bottom: «T·L·B·». On the right, a fragment of an illustration from the armorial of Wacław Potocki, partly covered by the image of the six-grosz coin, depicting the Eagle bearing on its breast the Janina coat-of-arms. Along the left rim, an inscription: «SZÓSTAK JANA SOBIESKIEGO» (SIX-GROSZ COIN OF JOHN III SOBIESKI).