the twelve stars of the European Union positioned around the outer circle of the coin and the issuing year '2004', positioned bottom centre, surround the bust of Bartolomeo Borghesi. To the left of the bust is the inscription 'Bartolomeo Borghesi', and one above the other are the letter 'R' and the engraver's initials 'E.L.F.'. To the right of the bust is the word 'San Marino'.

Unia Europejska przed rozszerzeniem w dniu 1 maja 2004 r

Napis na krawędzi, drobno zmielony