Depicts the Church of Santa Coloma d'Andorra, at right the year of mint and the country name. The outer ring contains the twelve stars of the European Union.

The Church of Santa Coloma d'Andorra is a church in Santa Coloma, Andorra la Vella Parish, and is Andorra's oldest church. The nave of the church was built in the 8th or 9th century, and the tower in the 12th century. In the church are visible remnants of murals made in the 12th century by the Master of Sant Coloma. Most of the murals were removed in 1933 and until 2007 were in Berlin. Now these murals are in the Andorran Government Exhibition Hall.

Engraver: Moles Disseny

A geographical map of Western Europe spans the outer ring and inner core on the left side of the coin.

12 stars are located on the left side of the outer ring, with six stars atop the map of Europe and six stars below it; six vertical stripes cut across the inner core of the coin, visually connecting the upper and lower star segments.

Luc Luycx, a designer at the Royal Belgian Mint, designed the Euro’s common reverse; his initials, LL, are seen on the right side of the design, just under the “0” in “50.”