Editing LMS Coronation Class (section)

==== Post-1951 ====
[[File:LMS 8P 46233 Green Appleby 14.06.12R edited-2.jpg|thumb|left|Preserved No. 46233 ''Duchess of Sutherland'' hauls a steam special gleaming in its BR "passenger" Brunswick Green.]]
[[File:Chester general 9 railway station geograph-2192488.jpg|thumb|right|In 1964, No. 46238 ''City of Carlisle'' shows off its coat of LMR Maroon. It also sports a yellow 'line prohibition' stripe.]]

The decision to adopt blue as the standard colour was subsequently reversed and Locomotive green was introduced in November 1951 with No. 46232 ''Duchess of Montrose''.{{r|Hunt|p=153}} Between October 1955{{r|Hunt|p=153}} and December 1957,{{r|Hunt|p=157}} all 38 locomotives carried it concurrently, the only livery the entire class carried.{{r|Hunt|p=136}}

In the late 1950s the decision was made that the [[London Midland Region of British Railways|London Midland Region's]] main line locomotives could carry the colour maroon. This permission did not extend to the [[Scottish Region of British Railways|Scottish Region]] whose locomotives remained green until withdrawal.

The LMR maroon was carried on 16 locomotives from the late 1950s: Nos. 46225-6, 46228-9, 46236, 46238, 46240, 46243-48, 46251, 46254 and 46256.{{r|Hunt|p=157}}{{r|Jennison|p=118}} No. 46245 was the first, in December 1957; a further fifteen examples followed between May and November 1958.{{r|Hunt|p=157}} The style of lining varied: the first six repaints into maroon (including No. 46245) were lined out in the LMS style; the last ten received the BR style of lining as used on the standard green livery; No. 46247, originally lined in the LMS style, was given the BR style in July 1959; and by November 1961 those with the BR lining were repainted to match No. 46245.{{r|Hunt|p=157}}

Because of insufficient clearance between the locomotives and the 25 kV overhead electric wires south of Crewe, the whole class was banned from operating under them with effect from 1 September 1964. To highlight this prohibition a yellow diagonal stripe was painted on the cab sides. This inability of the locomotives to operate on the line for which they were designed was crucial in the decision to withdraw the entire class.{{r|Jenkinson|loc=Plate 95}}