Fantastic Four #296 features a really cool, picture frame, 25th anniversary wrap-around cover which was used on all titles in November of 1986.  This cover is drawn by the great Barry Windsor-Smith.  The back covers of the anniversary books feature nice pinup drawings instead of the usual ads.  These books have enjoyed boosted popularity and value due to the special nature of the covers.  This book is graded 9.8 with white pages by CGC.