V. Southwell and B. Rackham, Analysed Specimens of English or American French German 0-6-6-0 0-3-3-0 C-C 2-6-6-0 1-3-3-0 r-C-C 2-6-8-0 1-3-4-0 1-C-D 2-8-8-2 1-4-4-I 1-D-D-1 2-8-8-8-2 1-4-4-4-I 1-D-D-D-1 2-8-8-8-4 1-4-4-4-2 1-D-D-D-2 4-4-6-2 2-2-3-1