Silver Age (1956-1969)

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

 1st appearance of the Blob!  X-Men cover and story by Stan Lee and Jack Kirby, snow white pages

1st appearance of the Scarlet Witch, Quicksilver, and the Brotherhood of Evil Mutants. 2nd appearance of Magneto. X-Men vs. Magneto & the Brotherhood of Evil Mutants cover and story

Sub-Mariner, Magneto, and the Evil Mutants, plus Scarlet Witch and Quicksilver battle the X-Men cover and story, Stan Lee and Jack Kirby

Blazing colors on this one, early Scarlet Witch and Quicksilver, Magneto, Blob,  X-Men cover and story by Stan Lee and Jack Kirby

1st appearance of Lucifer, 1st meeting of the X-Men and the Avengers. Stan Lee and Jack Kirby, copy b

1st appearance of Lucifer, 1st meeting of the X-Men and the Avengers. Stan Lee and Jack Kirby

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

 1st appearance of the Sentinels! X-Men vs. the Sentinels cover and story by Stan Lee, Jack Kirby, and Werner Roth

1st appearance of the Sentinels, X-Men vs. the Sentinels cover and story by Stan Lee and Jack Kirby and Warner Roth

X-Men vs. the Sentinels cover and story, origin of the Beast, Stan Lee and Jack Kirby, presents like a 9.0, but has a stain at bottom of bc

3rd appearance of the Sentinels! X-Men vs. the Sentinels cover and story, likely improvable

3rd appearance of the Sentinels! X-Men vs. the Sentinels cover and story

X-Men cover and story, Stan Lee and Jack Kirby

X-Men vs Magneto cover and story, Stan Lee, solid mid grade issue

1st appearance of the Mimic!! X-Men vs. the Mimic by Stan Lee, Jack Kirby, and Werner Roth! presents great for the grade

1st appearance of the Mimic!! X-Men vs. the Mimic by Stan Lee, Jack Kirby, and Werner Roth! 

1st appearance of the Mimic!! X-Men vs. the Mimic by Stan Lee, Jack Kirby, and Werner Roth! presents great for the grade, structurally nicer but tanning a bit

X-Men vs. Lucifer cover and story, story of how Professor X loses use of his legs, story and art by Roy Thomas and Werner Roth, very nice for the grade, might make 9.0

X-Men vs. Lucifer cover and story, story of how Professor X loses use of his legs, story and art by Roy Thomas and Werner Roth

X-Men cover and story, Very nice book! Stan Lee and Jack Kirby!

X-Men vs Count Nefaria, Plantman, Porcupine, Scarecrow, the Eel, and the Unicorn, much nicer structurally, but has some tanning

X-Men vs. Plantman, Unicorn, Porcupine, Scarecrow and the Eel by Roy Thomas and Werner Roth

X-Men vs. Plantman, Unicorn, Porcupine, Scarecrow and the Eel by Roy Thomas and Werner Roth