Averse: over the coat of arms of the Republic of Lithuania and the bottom of the superimposed LITHUANIA 50 LTL 2010th
Reverse: reproduced in the Lithuanian Red Book includes fish PISKORZ. Iršutinėje coins in a semi-circle carved fish name Lithuanian VIJŪNAS, while on the left side of Misgurnus fossilis.
Edge: Edge carved words LIETUVOS GAMTA (Nature of Lithuania).
Design: Vytautas Narutis and Giedrius Paulauskis.