▁R ▁and ▁W ▁Haw th orn , ▁re built ▁in ▁ 1 8 6 8 ▁as ▁ 2 - 4 - 0 s . ▁ ▁In ▁ 1 8 4 5 ▁the ▁MB & R R ▁ordered ▁four ▁ 0 - 6 - 0 s ▁from ▁the ▁Ha igh ▁Found ry , ▁and ▁a ▁fifth ▁engine ▁from ▁F ent on , ▁Cra ven ▁and ▁Company . ▁ ▁Another ▁engine ▁was ▁built ▁by ▁Ha igh ▁in ▁ 1 8 4 8 . ▁ ▁The ▁largest ▁EL R ▁class ▁was ▁a ▁series ▁of ▁outside - frame ▁ 2 - 4 - 0 s ▁with ▁ ▁cyl ind ers ▁and ▁ ▁driving ▁whe els . ▁ ▁Some ▁may ▁have ▁origin ated ▁as ▁ 2 - 2 - 2 s , ▁and ▁some ▁were ▁later ▁re built ▁as ▁ 2 - 4 - 0 ▁tank ▁engines . ▁ ▁One ▁was ▁re built ▁as ▁a ▁ 2 - 4 - 0 ▁s addle ▁tank ▁engine . ▁ ▁These ▁were ▁among ▁the ▁last ▁locomot ives ▁to ▁be ▁built ▁in ▁B ury . ▁ ▁Other ▁manufact ur ers ▁to ▁supply ▁the ▁EL R ▁were ▁Sh arp , ▁Roberts ▁and ▁Company , ▁St oth ert , ▁S la ugh ter ▁and ▁Company , ▁and ▁Bey er , ▁Pe ac ock ▁and ▁Company . ▁ ▁The ▁EL R ▁li very ▁for ▁passenger ▁locomot ives ▁was ▁dark ▁green ▁with ▁red ▁brown ▁frames , ▁and ▁pol ished ▁dom es ▁and ▁safety ▁val ves . ▁ ▁In frastr ucture ▁ ▁Station ▁buildings ▁▁ ▁Station ▁buildings