5 : NORTHAMPTONSHIRE ~ R.D. Foster & M.R.L. Instone.
Railway Track Layout Diagrams of the GWR BR (W) Section 11 East Cornwall 2nd Ed.
Railway Track Layout Diagrams of the GWR BR (W) Section 19A Britsol R A Cooke
Track Layout Diagrams of the GWR and BR WR Sec. 27: Oxford, R. A. Cooke (230159)
1937 Descriptive Diagrams of the Locomotive Railway Book by Jennings RGC
Descriptive Diagrams of the Locomotive Oswestry Class Book by Hunt
1937 Descriptive Diagrams of the Locomotive Railway Book by Jennings
