Low $4k
 | 
Mid $19k
 | 
High $110k
  • 1st team appearance and origin of the Fantastic Four: Mr. Fantastic, Invisible Woman, Human Torch, The Thing
  • 1st appearance of Mole Man
  • 1st appearance of Tricephalous
Details
Publisher Marvel
Published November 1961
Written By Stan Lee (1922 - 2018)
Illustrated By Jack Kirby