▁Church ill ▁became ▁the ▁only ▁person ▁to ▁decl ine ▁the ▁opportunity ▁to ▁name ▁a ▁Battle ▁of ▁Britain ▁class ▁locomot ive ▁after ▁himself . ▁ ▁Mod ifications ▁ ▁In ▁July / August ▁ 1 9 4 7 ▁it ▁had ▁its ▁original ▁flat - front ▁cab ▁alter ed ▁to ▁a ▁more ▁stream lined ▁w edge - sh aped , ▁with ▁a ▁larger ▁front ▁window . ▁ ▁It ▁passed ▁to ▁British ▁Rail ways ▁in ▁January ▁ 1 9 4 8 ▁as ▁part ▁of ▁national isation ▁of ▁Britain ' s ▁rail ways . ▁ ▁However ▁it ▁was ▁October ▁ 1 9 4 8 ▁before ▁it ▁received ▁its ▁British ▁Rail ways ▁number ▁ 3 4 0 5 1 . ▁It ▁also ▁kept ▁its ▁Southern ▁Railway ▁mal ach ite ▁green ▁with ▁chrome ▁yellow ▁strip ing ▁until ▁November ▁ 1 9 5 0 ▁when ▁it ▁was ▁rep aint ed ▁into ▁British ▁Rail ways ▁Brun sw ick ▁green . ▁ ▁During ▁an ▁over ha ul ▁at ▁East le igh ▁Works ▁in ▁March ▁ 1 9 4 9 , ▁ 3 4 0 5 1 ▁sw apped ▁its ▁tender ▁( number ▁ 3 3 0 1 ) ▁for ▁tender ▁number ▁ 3 2 8 0 , ▁formerly ▁couple d ▁to ▁ 2 1 C 1 2 8 ▁Edd yst one ▁( t ender ▁ 3 3 0 1 ▁was ▁then ▁attached ▁to ▁ 3 4 0 4 2 ▁Dor chester ). ▁ ▁In ▁February ▁ 1 9 5 0 , ▁ 3 4 0 5 1 ▁moved ▁to ▁N ine ▁El ms