Denier - Boleslaus I the Brave unknown mint

Bolesław I came to power in 992 following the death of his father Mieszko I, who had only converted Poland to Christianity in 966. The earliest Polish deniers issued under Bolesław are among the first indigenous coinage of the Polish state — minted not from any established monetary tradition but from the political necessity of projecting sovereignty in a kingdom newly integrated into Latin Christendom. The mint location for this type remains unresolved; Gniezno and Poznań are the candidates most frequently argued in the literature, without consensus.

Kopicki 8 is among the foundational references for early medieval Polish numismatics, though surviving specimens are rare enough that die studies remain incomplete.