Amazing Spider-Man #97 has always been a key Bronze Age book for lots of reasons.  It has a Green Goblin appearance and cover; it is NOT approved by the Comics Code Authority because it deals with hallucinogenic drugs (LSD); it is Spider-Man; it has an awesome John Romita cover; it's written by Stan Lee and illustrated by Gil Kane.  This book is graded 9.6 NM+ with white pages.  Its color, gloss and alignment are great!