X-Men #103 1977
X-Men #106 1977
X-Men #11 1965
X-Men #115 1978 Enter: Sauron!
X-Men #116 1978
X-Men #118 1979 Sun-Fire
X-Men #121 1979 First full appearance of Alpha Flight
X-Men #123 1973 (WHITMAN Edition) Variant Arcade's Murder World
X-Men #124 1979 (WHITMAN Edition) Variant
X-Men #23 1966
X-Men #25 1966 EL TIGRE
X-Men #29 1967 SUPER-ADAPTOID
X-Men #30 1967
X-Men #34 1967
X-Men #36 1967
X-Men #44 1968 Angel
X-Men #60 1969 First appearance of Sauron (Alter Ego of Karl Lykos)
X-Men #64 1970 First appearance of Sunfire
X-Men #67 1970
X-Men #74 1972
X-Men #90 1974
X-Men #93 1975
X-Men #95 1975 Death of Thunderbird; Third appearance of Storm; Third appearance of Nightcrawler; Third appearance of Colossus; Fourth appearance of Wolverine
X-Men #96 1975 1st Appearance of Moira Mactaggert
