Fantastic Four 1961 #41 - 3.5 - $35.00

The Frightful Four kidnap the Thing and brainwash him into aiding them against the rest of the FF.

On-sale date from 1965 Periodicals, Copyright Office, Library of Congress.

• The Brutal Betrayal of Ben Grimm! - Inker credit from Tom Hardee, via the GCD Errors List. Original indexer credited Vince Colletta.
• Men! Join My "$100-a-Week" Club! - Inside front cover. Ad to earn money by selling shoes.
• Nick Fury, agent of S.H.I.E.L.D. - Between story pages 4 and 5. Half-page promo announcing the debut of Nick Fury, Agent of S.H.I.E.L.D. in Strange Tales (Marvel, 1951 series) #135. Located on top half of page.
• Prince Namor the Sub-Mariner - Between story pages 4 and 5. Half-page promo announcing the debut of Prince Namor, the Sub-Mariner in Tales to Astonish (Marvel, 1959 series) #70. Located on lower half of page.
• U.S. Gov't Surplus - Ad for government surplus items: parachutes, boats, tents, machetes, etc. Between story pages 4 and 5 on top half of page.
• - Ad for Strat-O-Matic baseball game. On lower half of page, between story pages 4 and 5.
• - Ad for the Yubiwaza system of martial arts. Between story pages 8 and 9.
• Hypno-Coin - Advertisement for the Hypno-Coin from Hypnotic Aids Supply Co. located on top half of page between story pages 13 and 14.
• - Advertisement for selling Grit magazine from Grit Publishing Co. Occupies lower half of page between story pages 13 and 14.
• Stamps; Shop by Mail - Various classified-style ads for stamps and other products, between story pages 16 and 17.
• - Ad for the Commercial Trades Institute.
• 4 More Marvel Masterpieces! - House ad for The Amazing Spider-Man (Marvel, 1963 series) #27, Tales to Astonish (Marvel, 1959 series) #70, Journey into Mystery (Marvel, 1952 series) #118, and The X-Men (Marvel, 1963 series) #12 using reprints of their covers and advertised as ?on sale now.?
• - House ad for The Fantastic Four t-shirt and M.M.M.S. membership.
• - Letters from: Lynn Wilson, Keith McWalter, Garland W. Edmondson, Jr., Ben John, Dan Clark, Gary Arturs, Jim Quaid & Jerry Faller, and Victor Taucer; includes The Mighty Marvel Checklist and notice of "The Biggest News Yet!" (start of Nick Fury and Sub-Mariner series in Strange Tales and Tales to Astonish, respectively).
• Monster S-I-Z-E Monsters - Black and white reproduction of a painting of the monster. Dracula also available. Item 6' tall, in color: payment to Honor House, Lynbrook, NY.
• - Ad for fishing equipment from Niresk Discount Sales. Inside back cover.
• - Back cover. Ad for the Famous Artists Schools.