According Hackl and Klose’s: Neue Wege in der Medaillenkunst. Nr 9.
Nordic Art Medals.
Country of origin: Finland.
Metal: Silver.
Produced: 16 pcs.
Diameter: 56 mm.
Weight: approx. 106 grams.
Artist: Kauko Räsänen.
Published by:Finnish Mathematical Society .
Manufacturer: Kultateollisuus Turku Finland.
