Vol. 1: Rev. ed.
v. 1. Great Western / contributors, John Morris ... [et al.]
v. 3. LNER (Southern area), GC, GN, GE, M&GN amd CLC
v. 4. Southern railway / contributors, Derek Coe ... [et al.]
v. 6. Scotland / contributors, Derek Coe, John Creed, Forbes Alexander.
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Signal box register. ISBN 9781873228371. Published by Signalling Record Society in 2007. Publication and catalogue information, links to buy online and reader comments.
