Silver Age (1956-1969)

Superman and Batman story

Superman & Batman cover and story, giant issue

Superman and Batman team-up stories

Part 1 of 3rd Superman/Flash race!

Part 2 of 3rd Superman/Flash race! Neal Adams cover art

Part 2 of 3rd Superman/Flash race! Neal Adams cover art, copy b

Superman and Robin!  Neal Adams cover, white pages

Neal Adams cover, Superman vs. Batman cover and story 

Superman and Aquaman!  Neal Adams cover

 Imaginary story!  Super sons series begins!

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

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 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

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