On 3 July 2013, "Mallard" celebrated 75 years since achieving the world speed record, and to help commemorate this date all six surviving Class A4 locomotives were brought together around the turntable in the Great Hall of the National Railway Museum at York for a two-week 'great gathering'. The visitors include three UK-based, privately owned engines in 4464 "Bittern", 60007 "Sir Nigel Gresley" and 60009 "Union of South Africa" (formerly "Osprey"). "Mallard"s two internationally based sisters, 60008 "Dwight D. Eisenhower" and 60010 "Dominion of Canada", were present after completing extensive transatlantic journeys, and undergoing cosmetic restoration at the NRM's workshops.