Денарий, Польша, Bolesław II (1058-1080)

POLAND / Boleslaw the Bold 1058-1080. duke's denarius, Wrocław, Obv: Cross-shaped IS monogram, inscription BOLEXSLAVS, Rev: Head of St. Jana, inscription in the rim + S IOHΛNNES, silver 0.83 g, Str. not recorded, CNP 1212, Such. \"The beginnings of minting in Wrocław, type 2 (a fragment of the publication of the Scientific Association of Polish Archaeologists: \"Slavic Land in Medieval Europe 2, Wrocław 1996 - article available for viewing at WCN),"III+,1