Amazing Spider-Man #73 VF (8.0)
1st appearance of Man Mountain Marko, Spider-man cover and story by Stan Lee and John Romita, part of the petrified tablet storyline. likely improvable
Amazing Spider-Man #81 VF/NM (9.0)
Origin and 1st appearance of the Kangaroo, Kangaroo vs. Spider-man cover and story by Stan Lee and John Romita and John Buscema
Amazing Spider-Man #95 NM- (9.2)
Spidey & Gwen in London! 1st Arthur Stacy appearance
Amazing Spider-Man #113 VF+ (8.5)
1st appearance of Hammerhead on last page! Classic Spider-man vs Doc Ock cover and battle!
X-Men #49 VF- (7.5)
1st appearance of Polaris, X-men cover and story, Stan Lee, cover and art by Jim Steranko!
X-Men #104 VF/NM (9.0)
1st appearance of Corsair (father of Cyclops) , 1st cameo appearance of the StarJammers, X-Men vs Magneto cover and story
X-Men #104 VF+ (8.5)
1st appearance of Corsair (father of Cyclops) , 1st cameo appearance of the StarJammers, X-Men vs Magneto cover and story, looks better, but has just a bit of rust on staples
Amazing Spider-Man #37 CGC 8.5
1st appearance of Norman Osborn and Professor Strom, Spider-man vs. robots cover and story by Stan Lee and Steve Ditko!
Amazing Spider-Man #38 CGC 8.5
1st appearance of a guy named Joe! 2nd Mary Jane cameo appearance, Spider-man cover and story by Stan Lee and Steve Ditko! Last Ditko art this title!
Amazing Spider-Man #40 CGC 8.0
Spider-man vs. the Green Goblin cover and story, 1st origin of the Green Goblin! Stan Lee and John Romita
Amazing Spider-Man #81 CGC 9.0
Origin and 1st appearance of the Kangaroo, Kangaroo vs. Spider-man cover and story by Stan Lee and John Romita and John Buscema
Amazing Spider-Man #136 CGC 9.2
1st appearance of Harry Osborn as the Green Goblin, Spider-man vs the Green Goblin cover and story
Howard the Duck #12 CGC 9.8
1st brief appearance of Kiss in comics, Howard the Duck cover and story
X-Men #121 VF/NM (9.0)
1st full appearance of Alpha Flight. X-Men vs. Alpha Flight cover and story by Chris Claremont and John Byrne
X-Men #120 F+ (6.5)
1st appearance of Alpha Flight, X-Men cover and story, Chris Claremont and John Byrne cover and story
X-Men #118 VF/NM (9.0)
1st appearance of Mariko Yashida, X-Men & Sun Fire cover and story by Chris Claremont and John Byrne
Amazing Spider-Man #130 NM+ (9.6)
1st appearance of the Spider-mobile, Spidey vs. Hammerhead and the Jackal cover and story, Human Torch and Dr. Octopus appear
Amazing Spider-Man #139 VF (8.0)
1st appearance of the Grizzly, Spider-man vs. the Grizzly cover and story, the Jackal appears
Amazing Spider-Man #144 VF+ (8.5)
1st appearance of the Gwen Stacy clone, Spider-man and Gwen Stacy clone cover and story
Amazing Spider-Man #144 NM (9.4)
1st appearance of the Gwen Stacy clone, Spider-man and Gwen Stacy clone cover and story
Amazing Spider-Man #184 VF+ (8.5)
1st appearance of the White Dragon, Spider-man vs the White Dragon cover and story
Marvel Premiere #1 CGC 9.4
1st appearance of Him as Adam Warlock, 1st time in costume, 1st appearance of the Soul Gem, Warlock gains Soul Gem from High Evolutionary! Hulk, Thor, and Fantastic Four appear. 1st generation CGC slab, so likely hasn't been pressed.
Amazing Spider-Man #46 VF- (7.5)
1st appearance of the Shocker, who appeared in Spider-man Homecoming! Spider-man cover and story by Stan Lee and John Romita!
Swamp Thing #2 NM- (9.2)
Swamp Thing cover and story with art by Bernie Wrightson,1st cameo appearance of the Patchwork Man, 1st Anton Arcane