The cover shows its age and its many readings. The leather is worn down in many spots but it's still together. There is obvious shelf wear as well.

All pages appear to be accounted for and much of the book is made up of loose sections and signatures where the binding has failed. The splitting starts in the Index of this book. See photos to see some of that damage. Besides that, the book has some writing on the inside front cover and nothing else as far as I can see. 

All engravings (illustrations) are still present and are all in great shape.