Poland
People's Republic of Poland (1952-1989)
Av: Against a background of waves the emblem of the coat of arms of Gdynia, at the bottom GDYNIA, Rw: Inscription forming an outline of port basins, next to it cranes and outlines of ships, designed by Czesław Ciesielski
Silver-plated and oxidized tombak, 69.9 mm, 145.72 g, edition of 900 pieces (with reissue)