This commemorative stamp from Ireland was issued in 1968 to mark the 800th anniversary of St. Mary’s Cathedral in Limerick (1168–1968). The design features a detailed line engraving of the historic cathedral and surrounding medieval architecture, highlighting one of Ireland’s oldest religious landmarks. The inscription “Ardteampeall Muire, Luimneach” is Irish for St. Mary’s Cathedral, Limerick. Printed in a striking blue tone, the stamp reflects Ireland’s tradition of architectural commemoratives. It celebrates the cathedral’s long history since its foundation during the Norman period. This issue is valued by collectors of Irish history, religious architecture, and European commemoratives.