Piasts, Boleslaw II the Bold (1058-1079), denarius - prince on horseback with pennant, letter S lying down
obverse: figure of a prince on a horse holding a pennant, behind the figure of the prince the letter S - the mint mark - laid down
reverse: the duke's head in a smaller pearl border and an inscription in the outer border: BOLEZLAUS
silver, weight 0.88 mm, diameter 14.2 mm