Obverse
The obverse of the coin features a stylised Vytis, surrounded by the inscription LIETUVA (LITHUANIA), denomination (50 litas), year of issue (2005), and the mintmark of the Lithuanian Mint.
Reverse
The reverse of the coin features an extract of a speech delivered by Jonas Basanavičius at the opening of the Great Seimas of Vilnius: UŽ VISUOTINĄ TAUTOS DVASIŠKĄ IR MEDEGIŠKĄ GEROVĘ (FOR THE UNIVERSAL SPIRITUAL AND MATERIAL WELFARE OF THE NATION). Below is a facsimile of his signature. Around the edge of the coin is the inscription DIDYSIS VILNIAUS SEIMAS 100 (GREAT SEIMAS OF VILNIUS 100)
