Steam-outline locomotives internal combustion locomotives are often used on miniature railways, having some of the appeal of the real thing but simpler to operate. This book covers the sector in some detail, including prolific manufacturers Severn-Lamb and Alan Keef, as well as the  mainstream locomotive manufacturers Hudswell Clarke and Baguley who expanded into that area in the 1930s. An Appendix lists all known examples above 7.25 inch gauge.