This comprehensive 132 page full colour, perfect bound 'bookazine' has been edited by Keith Langston and has been written to mark the 175th anniversary of the Great Western Railway. It pays homage to Charles Benjamin Collett who was certainly the GWR's most prolific Chief Mechanical Engineer. This publication will include the following features - Collett's introduction of 15 new locomotive classes and 8 rebuilds or additions to other designs, an incredible combined total of some 2,589 steam locomotives Taking the earlier Churchward Star class design as the basis for a new 4-cyclinder 4-6-0 design and thus the Castle class was born The introduction in 1927 by Collett of the King class Over 130 photographic images, the majority of which are published for the first time.