"BR Class 40 Diesels by Malcolm Dyer Bradford Barton is a book that provides detailed information about the British Rail Class 40 diesel trains, which were operated by British Rail from 1948 to 1997. The book offers insights into the history, design, and maintenance of these trains, making it a valuable resource for enthusiasts and professionals interested in British railway history. With a focus on the British Rail era, this book offers a comprehensive look at the Class 40 diesels and their significance in the British railway industry." Any questions please ask Thanks for looking.