The General Motors Locomotives GP40 Operators Manual, 3rd Edition 1966, is a service manual for railway enthusiasts and collectors interested in locomotives from the LMS era. This book provides detailed information and instructions on operating and servicing the GP40 locomotives, making it a valuable addition to any railwayana collection. With a focus on transportation collectables and the history of the LMS company, this manual offers a unique insight into the world of railways and locomotives.