Medal by Wł. Terlecki and St. Rufin Koźbiewski, minted on the occasion of the opening of the Mint's Numismatic Cabinet in 1928.
Obverse: State eagle in a wreath
NUMISMATIC OFFICE OF THE STATE MINT 11.XI.1928
Reverse: Eagle from the Krakow groschen of Casimir the Great
GROSSI CRACOVIENSSES
Silver, diameter 28 mm, weight 10.99 g