This is a first edition copy of Back to the Stone Age by Edgar Rice Burroughs. There is some moisture damage that is evident on the inside of the sleeve, the cover of the book, the first few pages of the book, and the last few pages of the book. I did not notice any obvious damage to any of the other pages of the book. I tried to picture the damage as best as possible in the images. There is also writing on the first page of the book from when it was gifted to someone, also pictured.