This issue has variants.
This is the last issue of Jack Kirby's run.
The on-sale date is the publication date reported in the U. S. Copyright Office filing.
An earlier indexer provided an on-sale date of July 12. No citation was given, although other indexers speculate that it may come from a listing in the fanzine The Comics Reader.
Marvel Comics Index #8A lists Jim Novak as letterer.