Overall Nice condition, the lightest of box rubs on the left side, otherwise I don't see much wrong with it but please check out the photos, you might see something I missed (I don't dwell on these, mostly a quick glance/once over).

Book is a bit mangled from being stored in a box for so long.  Crunched up in the middle on the pages, and no longer flat, still very readable.

Stud Spider mold.  comes with the book the bay horse is based on.