State visit of the President of Ireland to the United Kingdom with full cavalry escort to Windsor Castle, where the President, accompanied by the Duke of Edinburgh, inspected a Guard of Honour provided by the 1st Battalion Irish Guards. President Higgins presented a ceremonial red coat to its regimental mascot, an Irish Wolfhound called Domhnall of Shantamon. The President viewed Irish-related items from the Royal Collection at Windsor Castle. Afterwards they departed for London and visited Westminster Abbey for a tour, where the President laid a wreath at the Grave of the Unknown Warrior and paid his respects with a bow to the tomb of Louis, the Earl of Mountbatten. After
Tomb of the Unknown Soldier (Arlington) quarryings. By the end of December 1931, the assembly was completed. Finishing work followed with the carvings on the die block by the Piccirilli Brothers under the direction of the sculptor Thomas Jones. (The brothers also carved the Lincoln statue for the Lincoln Memorial). The Tomb was completed without formal ceremony on April 9, 1932. The Tomb was placed at the head of the grave of the World War I Unknown. West of this grave are the crypts of Unknowns from World War II (south) and Korea (north). Between the two lies a crypt that once contained an Unknown from