Poland
People's Republic of Poland (1952-1989)
Av: Head opposite, at top Eagle EU- / GE- / NIU- / SZ - KW- / IA- / TK- / OW / SKI, at bottom 1888 - 1974, Rw: Daggered waves and seagulls, TO THE BUILDER / PORT / IN GDYNIA, designed and made by Stanislaw Sikora
tombak, 59.6 mm, 88.84 g, mintage 500 pieces