Depicts a tuna turned right. Above the tuna around the upper edge is written Latin name of tuna (THUNNUS THYNNUS). Around the lower edge, in the central part, is written the year of minting. Engraver's initials KK under the fish.

The Atlantic bluefin tuna (Thunnus thynnus) is a species of tuna in the family Scombridae. It is variously known as the northern bluefin tuna (mainly when including Pacific bluefin as a subspecies), giant bluefin tuna (for individuals exceeding 150 kilograms (330 lb)) and formerly as the tunny.

In the upper half-circle is placed marten running to the right. On the outstretched marten's body is written the upright value of the coin (2). Under the value is written KUNE. Along the edge of upper half-circle is written The Republic of Croatia in Croatian. Along the lower edge, in the central part, is placed the coat of arms of The Republic of Croatia. On the right side of the coat of arms is laid stylized laurel twig in bloom and on the left side of the coat of arms is laid the sprig of oak tree with fruit.

The coat of arms of the Republic of Croatia consists of one main shield and five smaller shields which form a crown over the main shield. The main coat of arms is a checkerboard (chequy) that consists of 13 red and 12 silver (white) fields. It's also informally known in Croatian as šahovnica ("chessboard", from šah, "chess"). The five smaller shields represent five different historical regions within Croatia.