The national parks portfolio Hardcover – order 1921 edition by Robert Sterling Yard

1921 3rd Publication Edition of The National Parks Portfolio by Robert Sterling Yard. hardcover in aceptable condition. Covers have wear and fading, stamped Montana Deaconess School, Helena Montana inside covers and some hand writing and a stain. Pages are in good condition and tight order, spine is good.
What is really great about this book is all of the photographs of places that have changed drastically, or are gone from over 100 years past.
"Acknowledgements are due to the many photographers, professionals and amateur, who contributed some of the best examples of their work to this Portfolio.I am open to offers.