This issue has variants.
John Romita pencils; Sal Buscema inks cover credits provided by Nick Caputo, confirmed by original art as seen in Sal Buscema, Comics Fast and Furious Artist book.
Story pages are numbered 1-20, but pages 12 and 13 are half-story and half-ads.
Letters from Jean Laidig, Don Tyler, F. C. Freeth, and Bruce Long. Also includes a panel from a previous story and a promo for Fantastic Four #109.
Bottom of first page of letters column. Statement of Ownership for October 1, 1970. Average paid circulation for past 12 months is 322,195. Issue nearest to filing date is 269, 255.