The gold collector coin with a face value of 10 złoty struck with proof finish features a stylised image of a contemporary circulation banknote, with a face value of 10 złoty. On the reverse, in the central part, a portrait of Duke Mieszko I is depicted in a decorative medallion. Two stylised Romanesque rosettes can be seen in the background of the inscriptions. On the right of the portrait, there is an oval with fragments of a crown, and a decorative plant ornament underneath. In the centre of the obverse, there is an image of a silver denarius with a depiction of a chapel dome or an image of a crown with a cross. The denarius is flanked by stylised fragments of columns and a ribbon. On the left of the image of the denarius, there is an oval with fragments of a crown.