LNER Class A4 4464 Bittern

Bittern is a London and North Eastern Railway Class A4 steam locomotive. It was completed on 18 December 1937 at Doncaster Works as works number 1866 and received the number 4464. It was renumbered 19 on 16 August 1946 under the LNER 1946 renumbering scheme and became 60019 under British Railways on 10 October 1948. It was released in the garter blue livery standard for A4 Pacifics, painted wartime black in 1941, and returned to garter blue in 1947. Of the 35 locomotives in the class it is one of six to survive into preservation, and one of only two currently scheduled to be certified for mainline use. In preservation it has also worn the identities of scrapped classmates, including the first A4, 2509 Silver Link, and 4492 Dominion of New Zealand.