Ca.1916 Ford Model T Price List of Parts,7-5/16" x 4-3/4" with 59 pages.the cover,first page and illustrative pages are show.The brown stain is thru-out the booklet,most of them smaller than that shown and none of it hindering the textv or images.I can't figure out what caused it but my guess is the booklet on that edge was touching something and the stain leached into the paper. Excellent Condition with the center page lose of the staples and the stains.