Medal minted on the 300th anniversary of the Union of Lublin in 1869.
Signed P. TASSET.
On the edge mark CUIVRE.
Obverse: crowned three-field Polish-Lithuanian-Russian coat of arms, below the signature P.TASSET
WOLNI Z WOLNEMI RÓWNI Z RÓWNEMI
Reverse: inscription in five lines
TRZECHSETNA / ROCZNICA / UNII / POLSKI•LITWY•RUSI / 1569 11 SIERPNIA 1869
Diameter 64 mm, weight 112.41 g
