Watch List notes:

POLAND: Proba of 20 Zlotych (1980 MW) in nickel commemorating the 50th Anniversary of Training Ship Daru Pomorza. Imperial eagle above value on obverse. Sailing ship Daru Pomorza on reverse. Inside slab by PCGS "SP 68 / Proba". Cert number: 34439573. Mintage: 500 coins. (KM Pr379) & (Par# P316a).