Atlas of Human Anatomy, by Dr. Johannes Sobotta, (Oversized HC, 1927, 785 pages, $22)
This book seems to be bound in a library-like binding, but has none of the markings of an ex-lib. It has been well used, with some underlinings, and some pages reinforced with tape. Still, for its age, it is in good condition. The pages are very little discolored, and the drawings, both in color and black and white, are beautiful. ( How did they do such detailed drawings?) Similar books in a bit better condition are listed on the internet for over $100. You can have this one for only $22. (I think the pictures alone are worth that, but I am biased.) Look for this book in the reference section.