This is the book that dealership parts & service departments used to order parts. The text is a list of the parts available at the time of publication with data such as part numbers, model-year application and/or component application, part names, and more. The cover of the book says Graham Brothers and is dated December 1, 1928 - since Chrysler Corporation changed the names on all of the trucks in January of 1929 to Dodge, this is going to cover 1929 Dodge vehicles. All text, no illustrations.
You will find original parts numbers, which are still useful today because most parts vendors still use those numbers to keep track of their own stock. You can also use this parts book to find out which parts on your vehicle interchange with other years and models covered in this book. Parts books are the authority on the correct equipment for your vehicle; you'll know definitively which parts and accessories are original when you use this book.