The 1966 GP40 Locomotive Operators Manual by General Motors Corporation is a rare and valuable piece of railwayana from North America. This manual provides detailed information on operating the GP40 locomotive, making it a must-have for collectors and enthusiasts of transportation memorabilia. Its theme of railwayana and the specific focus on locomotive operations make it a unique and sought-after item for those interested in the history and technology of railways in the United States.
