They are Boyz Lore: Donald and Douglas worked on BR being #57646 & #57647 and they sometimes double head trains in 1945 they had their final run and they were both given smoke deflectors In 1946 they were sold to the NWR they still kept their British liveries even though they got put on name tags and their smoke deflectors were taken off for the name tags pretty soon afterwards they got painted blue and still double head trains or pool commuter trains to this very day. Sorry that the lore is short I had no big ideas.
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