Uncanny X-Men #249, published in Oct 1989, features the 1st appearance of Whiteout. A key Copper Age Marvel issue for collectors. Shop at Iconic Comics.

Uncanny X-Men #215, published in Mar 1987, features the 1st appearance of Stonewall. A key Copper Age Marvel issue for collectors. Shop at Iconic Comics.

Uncanny X-Men #227, published in Mar 1988, features the 1st full appearance of the Adversary. A key Copper Age Marvel issue for collectors. Shop at Iconic Comics.

Iron Man #214, published in Jan 1987, features the 1st appearance of new Spider-Woman costume. A key Copper Age Marvel issue for collectors. Shop at Iconic Comics.

Iron Man #278, published in Mar 1992, features the 1st appearance of Shatterax. A key Copper Age Marvel issue for collectors. Shop at Iconic Comics.

Batman #479, published in Jun 1992, features the 1st appearance of Pagan. A key Copper Age DC Comics issue for collectors. Shop at Iconic Comics.

Captain America #342, published in Jun 1988, features the 1st full appearance of Coachwhip. A key Copper Age Marvel issue for collectors. Shop at Iconic Comics.

Fantastic Four #357, published in Oct 1991, features the Alicia Masters revealed to be a Skrull named Lyja. A key Copper Age Marvel issue for collectors. Shop at Iconic Comics.

Iron Man #146, published in May 1981, features the 1st appearance of Backlash. A key Bronze Age Marvel issue for collectors. Shop at Iconic Comics.

Batman #550, published in Jan 1998, features the 1st appearance of Cameron Chase. A key Modern Age DC Comics issue for collectors. Shop at Iconic Comics.

Thor #293, published in Mar 1980, features the 1st cameo appearance of Vidar. A key Bronze Age Marvel issue for collectors. Shop at Iconic Comics.

Avengers #258, published in Aug 1985, features the 2nd appearance of Nebula. A key Copper Age Marvel issue for collectors. Shop at Iconic Comics.

Avengers #264, published in Feb 1986, features the 1st appearance of the 2nd Yellowjacket. A key Copper Age Marvel issue for collectors. Shop at Iconic Comics.

Avengers #289, published in Mar 1988, features the 1st appearance of Kubik. A key Copper Age Marvel issue for collectors. Shop at Iconic Comics.

Avengers #316, published in Apr 1990, features the Spider-Man is offered membership to The Avengers. A key Copper Age Marvel issue for collectors. Shop at Iconic Comics.

Avengers #328, published in Jan 1991, features the Origin of Rage. A key Copper Age Marvel issue for collectors. Shop at Iconic Comics.

Avengers #355, published in Oct 1992, features the Debut of new Sersi costume. A key Copper Age Marvel issue for collectors. Shop at Iconic Comics.

Avengers #364, published in Jul 1993, features the 1st full appearance of Deathcry. A key Modern Age Marvel issue for collectors. Shop at Iconic Comics.

Captain America #254, published in Feb 1981, features the Death of the 1st Union Jack. A key Bronze Age Marvel issue for collectors. Shop at Iconic Comics.

Captain America #333, published in Sep 1987, features the 1st appearance of John Walker as the 4th Captain America. A key Copper Age Marvel issue for collectors. Shop at Iconic Comics.

Captain America #232, published in Apr 1979, features the 1st full cover appearance of Peggy Carter. A key Bronze Age Marvel issue for collectors. Shop at Iconic Comics.

Captain America #303, published in Mar 1985, features the Origin of Captain America's shield. A key Copper Age Marvel issue for collectors. Shop at Iconic Comics.

Captain America #317, published in May 1986, features the 1st team appearance of Death-Throws. A key Copper Age Marvel issue for collectors. Shop at Iconic Comics.

Captain America #318, published in Jun 1986, features the Death of Death Adder. A key Copper Age Marvel issue for collectors. Shop at Iconic Comics.

Captain America #320, published in Aug 1986, features the Death of Scourge. A key Copper Age Marvel issue for collectors. Shop at Iconic Comics.

Fantastic Four #252, published in Mar 1983, features the Iconic horizontal format. A key Bronze Age Marvel issue for collectors. Shop at Iconic Comics.

Fantastic Four #280, published in Jul 1985, features the Sue Storm becomes Malice. A key Copper Age Marvel issue for collectors. Shop at Iconic Comics.

Fantastic Four #289, published in Apr 1986, features the Death of Basilisk. A key Copper Age Marvel issue for collectors. Shop at Iconic Comics.

Fantastic Four #388, published in May 1994, features the 1st appearance of the Dark Raider. A key Modern Age Marvel issue for collectors. Shop at Iconic Comics.

Uncanny X-Men #181, published in May 1984, features the 1st appearance of Amiko. A key Copper Age Marvel issue for collectors. Shop at Iconic Comics.