Good+ Condition for this vintage hdbk.  Cover shows minor edge-wear (corners and spine-ends), and some underlying discoloration on back board,  wear, not easily detected.  Spine lettering is all clear.  Hinges/binding are tight/strong.  Very light age-tanning of paper is possible, but not for sure.   Owner name etc, (Stanford University) inside cover and 1-line note on first blank page.  Also, pen marks and notes on 17 pages.   Otherwise, interior is clean...no tears, folds, stains, nor foxing.  No DJ.  Sturdy enough for normal use.  Collectible.