Marvel UK June 28, 1975
Reprints X-Men (1st series) #11 (pages 1-12); Reprints Silver Surfer (vol. 1) #5 (pages 1-21); 1st Appearance of Juggernaut; 1st appearance Juggernaut (Cain Marko); 1st Appearance of Al B. Harper; Origin of Professor X; Origin of Professor Xavier; Origin of Charles Xavier; Origin of Juggernaut; Magazine-size; B&W
Silver Surfer: — And Who Shall Mourn for Him?; X-Men: The Origin of Professor X!, Part 1
Stan Lee
John Buscema, Jack Kirby, Alex Toth