This is one of the harder to find non-Oz books illustrated by John R Neill: The Bride Her Wedding Book, published in 1914 by Reilly & Britton (Chicago). These were published in a few different binding styles; this one a grey cloth hardcover that I haven’t seen before (other bindings are a cream cloth hardcover, a padded paper hardcover, and I believe a softcover edition; all notoriously hard to find!) Oz Enthusiast Bill Campbell calls this “One of John R. Neill’s loveliest creations”. https://theozenthusiast.blogspot.com/2015/04/brides-book.html The book has about 50 pages and elegant rose-design free endpapers.
This was meant to be used as a record of a bride’s courtship and marriage, and very quaintly, this one is indeed that for a Miss Alta A Bishop and her beau Arthur B Feeley. Profusely illustrated by Neill and heavily annotated by Alta (see photos). She has also numbered the lower page corners in pencil. Gilt front cover has some spots as shown; binding is tight, wedding newspaper announcement tipped in, near very good.