Poland
People's Republic of Poland (1952-1989)
Av: Half-figure seated against a background of books, *1661* JOHANNES HEVELIUS + 1687 + - ...CIVIS ORBIS, Rw: Roofs of buildings in the Old Town in Gdansk, above stars with letters forming the inscription AUTHOROWI and MACHINAE COELESTIS, at the bottom the inscription PTAiN GDAŃSK 1987 supported by two lions, designed by Krystyna Jeż-Kręcicka
tombak, 69.7 mm, 124.06 g, edition of 360 pieces