During his time as Locomotive Superintendent of the Great Eastern Railway, S.W. Johnson was responsible for the building of two classes of 0-6-0 goods engines, some 110 engines in total: the 417 Class built 1867-9 and the 477 Class of 1871-3. In many ways these were the precursors of his standard goods engines for the Midland Railway, although those engines were considerably larger, as he adopted Matthew Kirtley's standard 8'0" + 8'6" wheelbase.   Does anyone have to hand or know of a