By O.S. Nock. Locomotive Practice And Performance. 1989 First Edition.
LOCOMOTIVE PRACTICE AND PERFORMANCE IN THE TWENTIETH CENTURY 1949 HARDBACK
Locomotive practice and performance in the twentieth century, Cecil J Allen 1950
DEVELOPMENTS IN LOCOMOTIVE PRACTICE by C.J.Bowen Cooke 1902
West Country Class Locomotive Wrenn and Dublo namplates and backing plates
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