Volume III is signed by McCoy and Collman.  Volume III has a fold-out at page 150 that has detached from the binding and has small surface paper tears as a result (see last 4 photos).  Volume IV has hard bumps at the top corners and some ghosting of an old sticker price on the inside front flap of the clear vinyl cover protector. The vinyl protector also sticks a bit to the cover.  No markings in the text. Top edge of the text blocks are dust stained.  Minor general wear.  Aside from the detached fold-out, the bindings are solid.