POLAND: Proba of 200 Zlotych (1981 MW) in nickel commemorating Wladyslaw I Herman. Imperial eagle on obverse. Full-length figure of Wladyslaw I Herman facing left on reverse. Inside slab by NGC "PF 68 ULTRA CAMEO / PROBA". Cert number: 3997710-113. Mintage: 500 coins. (KM Pr455) & (Par# 437B).