The mark consists of a coat of arms featuring a shield with a top half that is yellow with red heraldic lions and a green snake wrapped around a white and red sword. The lower left half of the shield is green featuring a yellow deer. The lower right half of the shield is half white and half black featuring a boar with a black front half and white back half. Around the shield is a brown, light brown and black ornamental border with a brown, light brown and black helmet centered over the top of the shield. Atop the helmet is a yellow crown and red bird, behind which is a black circular shape. Above the coat of arms is the wording "20" in white, followed by a silhouette of four men carrying a canoe in white, followed by the wording "10" in white. Between these elements and the coat of arms is the wording "O'SULLIVAN'S" in yellow with red shading. Below the coat of arms is the wording "ORIGINAL" in red with white shading, "IRISH WHISKEY" in yellow with red shading, and "TRIPLE DISTILLED AND MATURED IN THE DINGLE PENINSULA BY THE DINGLE WHISKEY COMPANY." in white. All of the foregoing elements appear against a vertically oriented green rectangle that is outlined with a white band, then a green band, and then a red band.