CIBA Collection of Medical Illustrations. 8 Volume Set in 12 Books. Hardcover books from 1980’s and 1990’s, from many different printings. Plastic Covers have some tears, missing corners, some have some yellowing. You can see yellowing on some flaps and on the spines. One book has a cut on the front cover, through the plastic and into the book cover (see pic). Some book edges have some discoloration spots. I saw one book with just a little yellowing along the top of the pages. That book also has a few discoloration spots on the first blank pages (see pics). Other wise pages looks very clean. I did not see any writing in the books. Thanks for looking!