All have oxidized pages due to age.  The pages inside are unmarked and the bindings are tight--many appear unread.  Obviously, all the books will have minor flaws due to age but I've noted any issues below:

H-91 None noted. 

H-48 None noted.

23775 None noted.

52180 Wear/bends/abrasions on cover.  Price marked out on cover and spine.

53415 Hole punched on Mister Justice cover.

71082.  None noted.

77525.  There's a worn spot/abrasion where the cover meets the spine on both covers.  A dent on Son of the Tree.  A small water spot permeates onto the bottom of some of the pages.

81680  None noted.

89301  2nd Printing otherwise none noted.