Greenberg Publishing Company, Sykesville, MD. Illustrated with photographs throughout. Wrappers lightly worn with some light shelf-wear to the extremities present. Book is free of ownership marks. Text is clean and free of marks. Binding tight and solid. The book has a zillion part numbers. If that helps you knowing Lionel’s exact part number and you have a boat-load of accessories then this is the book for you. It is NOT a repair manual. The book is comprised of “Service Bulletins” that may inform the (then) repair shop how to retro-fit a new smoke unit for the bulb type… Things of that ilk if you get me. Most of the bulletins show you things like where to oil your locomotive and other minor explanations.