What is the value of a book called Haynes Guide The Complete Handbook of Yellowstone National Park?

It is by: Jack Ellis Haynes,Published by Haynes Picture Shops. 341-3-5 Selby Ave St. Paul Minnesota. Copyrighted 1916 andup to 1929.

If you come out to Wyoming and visit the park, it would be of considerable value in describing the attractions. although a few of the details have changed with time, especially prices. I suggest you get updated information from the US Park Service website.