Piasts, Boleslaw II the Bold (1058-1079), denarius - figure of the king with a crown, letter Z behind the figure
denarius minted already in the period after the coronation in 1076, as evidenced by the crown on the ruler's head, and before 1079
obverse: figure of the prince with a crown on his head holding a sword, behind the figure of the prince the letter Z - the mint mark
reverse: three-towered building with domed ends of towers, additional dots between domes
silver, weight 0.81 mm, diameter 13.7 mm