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By the time the two members of the class were built and entered service, the TR had been succeeded by the East African Railways (EAR), which designated them as its 12 class, and put them to work in the Tanganyika Territory (now part of Tanzania).
Patience, Kevin (1976), Steam in East Africa: a pictorial history of the railways in East Africa, 1893-1976, Nairobi: Heinemann Educational Books (E.A.) Ltd, OCLC3781370, WikidataQ111363477