"A combined-volume reissue of the IRSE 'green booklets' no. 18. Principles of relay interlocking & control panels - no. 19. Route control systems (LT practice) - no. 20. Route control systems (WB&S Co) - no. 21. Route control systems (AEI-GRS) - no. 22. Route control systems (SGE 1958 route relay interlocking system) - no. 28. Route control systems (London Transport practice) [2nd. ed.] - no. 29. Solid state interlocking."
Title from cover.
Individual booklets originally published: 1949-1969.
OBNB doesn't sell books, but you may be able to find a copy at one of these websites:
British Railway signalling practice. Interlocking principles & systems. ISBN 090239021X. Published by IRSE in 2005. Publication and catalogue information, links to buy online and reader comments.
