Fantastic Four (1961 1st Series) #102 VG-
Published Sep 1970 by Marvel.
"The Strength of the Sub-Mariner" Part 1 of 3. Guest-starring the Sub-Mariner. Script by Stan Lee. Pencils by Jack Kirby. Inks by Joe Sinnott. Cover by John Romita and John Verpoorten. Prince Namor travels to Antarctica to explore a mysterious subsea shockwave! The Sub-Mariner's investigation leads to the Savage Land and an unconscious man lying on the ground. Who is this gentleman? Readers of the X-Men would know...but unfortunately the Avenging Son does not! Once the Atlanteans take the Master of Magnetism back to Atlantis, he begins to encourage Namor to attack the surface world. Will the Sub-Mariner fall for Magneto's ploy? Regrettably, the Fantastic Four make the choice easy for Namor, when the Thing accidentally fires a missile at Atlantis! Cameo appearance by Franklin. (Notes: Magneto previously appeared in Uncanny X-men 63. This is Magneto's first appearance after the X-Men series went into reprint in the early 1970's. This is also Jack Kirby's final issue as the regular penciler on the Fantastic Four series. Jack Kirby pencils part of issue 108.) 32 pages Cover price $0.15.