The product is a British Railway Diesel D5176 to D5299 D7500 AEI SULZER 25 Operating Manual from 1966. This manual provides detailed instructions and information on the operation and maintenance of these diesel trains, shedding light on the procedures and practices of British Rail during that era. As a piece of paper railwayana, it offers valuable insights into the transportation collectables of the time, making it a useful reference for collectors and enthusiasts of railway history.
