Obverse: Romania's Coat of Arms, the year of issue "2002" and the face value "50 LEI"; above, the inscription "ROMANIA"; triangular medallion representing one of the cardinal points of the compass rose.
Reverse: The image of the protected species - the lynx; the inscriptions "REZERVATII SI PARCURI NATIONALE", "PIATRA CRAIULUI" (the name of the park) and "LYNX LYNX" (the scientific name of the species).