Reverse In the central part, within a smaller circle (hatched with horizontal lines) the number '40', above it a semi-circular inscription in Spanish: 'CENTÉSIMOS' - 40 centimos, surrounded by a wreath tied in the center with a ribbon. The edge of the coin features decorative elements in the form of dots.
Obverse In the central part, a depiction of the Sun with a female face and rays of varying lengths. Around the edge, the country name Eastern Republic of Uruguay in Spanish: 'REPÚBLICA ORIENTAL DEL URUGUAY' and, separated by a four-pointed star, the mint year 1844. The edge of the coin features decorative elements in the form of dots.