Poland, People's Republic of Poland (1952-1989), Koszalin. Medal 1988, Wladyslaw I Herman 1079-1102, MMP 88/883, Paszkowycz 83/88, designed by E. Olszewska-Borys, issuer: Polish Archaeological and Numismatic Society, Koszalin, mintage 2317 pcs, Silver-plated Bronze 70 mm, weight 136,9 g., Condition aUNC