The "Model Train H and M Power Control Manual with 1965 Price List" is a rare and valuable collectable item for model railway enthusiasts. Although now out of date it was Produced by Model Power, this manual provides detailed instructions on controlling the speed and power of model trains, along with a comprehensive price list from 1965. This advertising specimen from the era of model railways offers a unique insight into the world of model train hobbyists and collectors, possibly making it a sought-after piece for those passionate about the history and intricacies of model railways. There is a miriad of old pictures of old controllers and there technical specifications over 39 pages. Thanks for looking.