A beautiful piece of a rarer medal.
Patina, tarnish.
Weight 41g , diameter 41 mm.
Obverse: bust of astronomer, in the rim legend:
NICOLAUS - COPERNICUS;
Reverse: Inscription NATUS/TORUNII/IN PRUSSIA/AN MCCCCLXXIII/OBIIT/AN MDXLIII/SERIES NUMISMATICA/UNIVERSALIS VIRORUM ILLUSTRIUM/MDCCCXVIII;