Changes

|carno = 4550E4550|livery = BR Maroon|othernos = E4550NE4550

No 4550 4545 was built in 1956 at York in 1957 to diagram number 93 (AC204), lot number 30243. It went into service on the Eastern Region in March 1957, where it remained apart from a brief allocation to the Northeast region between September 1967 and January 1968.<refname=Longworth>Railway Heritage Register Carriage Survey[[Bibliography#Other References|Longworth (2013)]] p.57.</ref> It saw service on BR’s Eastern Region, was eventually being withdrawn from service at Heaton, Newcastle.<ref>SVR Stock Book 9th edition</ref>