X-Men #1 CGC 3.0
Origin and 1st appearance of the X-Men, Cyclops, Marvel Girl, Ice Man, and the Beast! 1st Professor X and 1st Magneto by Stan Lee and Jack Kirby, has not been cleaned or pressed so certainly a chance at an upgrade
X-Men #2 CGC 7.5
1st appearance of the Vanisher, 2nd appearance of the X-Men by Stan Lee and Jack Kirby
X-Men #4 CGC 6.0
1st appearance of the Scarlet Witch, Quicksilver, and the Brotherhood of Evil Mutants. 2nd appearance of Magneto. X-Men cover and story by Stan Lee and Jack Kirby
X-Men #7 CGC 7.0
Scarlet Witch and Quicksilver, Magneto, Blob, and X-Men cover and story, Stan Lee and Jack Kirby
X-Men #8 CGC 8.0
1st appearance of Unus the Untouchable. X-Men cover and story by Stan Lee and Jack Kirby
X-Men #12 CGC 4.5
1st full appearance of the Juggernaut! X-Men vs. the Juggernaut cover and story by Stan Lee, Jack Kirby, and Alex Toth
$699.99
Sale PendingX-Men #12 CGC 6.5
1st full appearance of the Juggernaut! Origin of Professor X, X-Men vs. Juggernaut cover and story by Stan Lee, Alex Toth, and Jack Kirby
$1,499.99
Sale PendingX-Men #12 CGC 5.5
1st full appearance of the Juggernaut! Origin of Professor X, X-Men vs. Juggernaut cover and story by Stan Lee, Alex Toth, and Jack Kirby
X-Men #23 CGC 7.5
X-Men vs. Plantman, Unicorn, Porcupine, Scarecrow and the Eel by Roy Thomas and Werner Roth
X-Men #25 CGC 6.5
X-Men vs. El Tigre cover and story, Stan Lee and Werner Roth, presents nicer than the grade
X-Men #35 CGC 9.0
1st appearance of the Changeling, Spider-man vs the X-Men cover and story, Stan Lee and Werner Roth story and art
X-Men #35 CGC 8.5
1st appearance of the Changeling, Spider-man vs the X-Men cover and story, Stan Lee and Werner Roth story and art
X-Men #35 CGC 7.0
1st appearance of the Changeling, Spider-man vs the X-Men cover and story, Stan Lee and Werner Roth story and art
$329.99
Sale PendingX-Men #40 CGC 8.5
1st appearance of the Frankenstein monster at Marvel, X-men cover and story
X-Men #43 CGC 9.4
X-Men vs. Magneto cover and story, Scarlet Witch and Quicksilver appear
$474.99
Sale PendingX-Men #49 CGC 5.0
1st appearance of Polaris, X-men cover and story, Stan Lee, cover and art by Jim Steranko!
X-Men #50 CGC 9.2
1st Polaris cover appearance, Polaris & Magneto vs. the X-Men cover and story, Stan Lee and Jim Steranko
$999.99
Sale PendingX-Men #51 CGC 9.0
1st appearance of Eric the Red, Jim Steranko cover, X-men cover and story and art by Jim Steranko! Magneto and Polaris appear, origin of the Beast
X-Men #56 CGC 9.2
1st appearance of the Living Monolith! X-Men vs. the Monolith cover and story with Neal Adams cover and art!
X-Men #58 CGC 8.5
1st Havok! X-Men cover and story by Roy Thomas with Neal Adams cover and art!
X-Men #61 CGC 9.2
X-Men vs. Sauron cover and story, Neal Adams cover and art! 2nd appearance of Sauron