Денарий, Польша, Bolesław I the Brave (992-1025), м.д. ?

POLAND / Boleslaw the Brave 992-1025. MOGILNO denarius, Obv: Cross with ornaments in the corners: wedge, circle, wedge and triple balls, around the inscription + BOLEZLΛVS DVX, Rev: Roof of the chapel topped with a knight's cross, below it probably the mark of the mint master BONI, around the inscription MOGILИ CIVIIΛS, Gum-H . 5, Gum-CNP 15-16, silver 1.15 g, on both sides of the coin the type and arrangement of the elements is very characteristic of Baravian coins, specifically the Regensburg coins of Emperor Henry II from the years 1002-1009, bent, gray patina, perfectly preserved, fully legible the inscription and all elements of the drawings on both sides of the coin are clearly visible, the coin is of the highest rarity, it has never appeared in trade, probably only 3 copies are known in museums