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Marvel ⋅ 1967

Low
$20
Mid
$80
High
$200

Key Facts

Origin back-up stories begin featuring the X-Men and the creation of the team

Marvel ⋅ 1967

Low
$35
Mid
$100
High
$350

Key Facts

Debut of new X-Men suits

Origin of Cyclops

Marvel ⋅ 1968

Low
$20
Mid
$80
High
$220

Key Facts

Origin of Cyclops continued

Frankenstein's monster appearance, revealed to be an android created by aliens

Marvel ⋅ 1968

Low
$12
Mid
$40
High
$120

Key Facts

1st appearance of Grotesk aka Gor-Tok

Origin of Cyclops continued

Marvel ⋅ 1968

Low
$15
Mid
$60
High
$180

Key Facts

Death of Changeling, disguised as Professor X

Origin of Cyclops continued

Marvel ⋅ 1968

Low
$15
Mid
$45
High
$155

Marvel ⋅ 1968

Low
$12
Mid
$40
High
$120

Key Facts

1st appearance of Red Raven in the Silver Age

Origin of Iceman, continued thru to #47

Marvel ⋅ 1968

Low
$12
Mid
$40
High
$125

Marvel ⋅ 1968

Low
$15
Mid
$40
High
$140

Marvel ⋅ 1968

Low
$10
Mid
$35
High
$110

Marvel ⋅ 1968

Low
$12
Mid
$35
High
$120

Marvel ⋅ 1968

Low
$35
Mid
$90
High
$350

Key Facts

1st appearance of Lorna Dane, daughter of Magneto who later takes the name Polaris

1st appearance of Mesmero, a mutant with hypnosis powers

Origin of Beast begins and continues through to #53

[May 2025 - there is a rumor circulating online that Neve Campbell has been cast as Polaris in an upcoming MCU project]

Marvel ⋅ 1968

Low
$70
Mid
$235
High
$850

Key Facts

2nd appearance Lorna Dane, daughter of Magneto who later takes the name Polaris

2nd appearance of Mesmero

Origin of Beast, his birth and cause of mutation

First use of the classic X-Men logo, designed by Jim Steranko

Marvel ⋅ 1968

Low
$18
Mid
$60
High
$180

Key Facts

Cyclops disguised as Erik the Red

Iconic cover art by Jim Steranko

Marvel ⋅ 1969

Low
$25
Mid
$90
High
$250

Key Facts

Cyclops disguised as Erik the Red

Marvel ⋅ 1969

Low
$15
Mid
$50
High
$150

Key Facts

First professionally published cover art by Barry Windsor-Smith

Origin of Beast, back-up story concludes

Marvel ⋅ 1969

Low
$25
Mid
$80
High
$225

Key Facts

1st appearance and origin of Alex Summers, later becomes Havok in X-Men #56

1st appearance of the Living Pharaoh, later becomes the Living Monolith

Origin of Angel

Low
$8
Mid
$20
High
$75

Key Facts

Origin of Angel, as the Avenging Angel

UK Edition ⋅ Marvel ⋅ 1969

Low
$12
Mid
$35
High
$115
Low
$60
Mid
$180
High
$600

Key Facts

Iconic cover art by Neal Adams

The Living Pharaoh becomes the Living Monolith, later becomes the Living Planet

Origin of Angel, joins the X-Men

UK Edition ⋅ Marvel ⋅ 1969

Low
$25
Mid
$80
High
$265
Low
$30
Mid
$100
High
$300

Key Facts

1st appearance of Larry Trask, son of Bolivar Trask

UK Edition ⋅ Marvel ⋅ 1969

Low
$25
Mid
$80
High
$270
Low
$80
Mid
$400
High
$1.2k

Key Facts

1st appearance of Havok in costume

UK Edition ⋅ Marvel ⋅ 1969

Low
$25
Mid
$80
High
$270
Low
$15
Mid
$50
High
$160

Key Facts

1st appearance of Dr. Lykos, the human form of Sauron

UK Edition ⋅ Marvel ⋅ 1969

Low
$25
Mid
$80
High
$270
Low
$30
Mid
$100
High
$300

Key Facts

1st appearance of Sauron, a Savage Land mutate

Reprint ⋅ Marvel ⋅ 1993

Low
$1
Mid
$2
High
$3

UK Edition ⋅ Marvel ⋅ 1969

Low
$18
Mid
$55
High
$190
Low
$12
Mid
$35
High
$110

Key Facts

2nd appearance of Sauron

UK Edition ⋅ Marvel ⋅ 1969

Low
$25
Mid
$80
High
$270

JC Penney ⋅ Marvel ⋅ 1993

Low
$2
Mid
$8
High
$20

Key Facts

Reprint of X-Men #61, distributed by JC Penney department stores

Identified by the X-Men VHS advertisement on back cover

Low
$20
Mid
$80
High
$200

Key Facts

1st team appearance of the Savage Land Mutates, natives of the Savage Land, genetically altered by Magneto

First time Magneto removes helmet

UK Edition ⋅ Marvel ⋅ 1969

Low
$25
Mid
$80
High
$270

JC Penney ⋅ Marvel ⋅ 1994

Low
$1
Mid
$5
High
$15

Key Facts

Reprint of X-Men #62, distributed by JC Penney department stores

Identified by the Stridex advertisement on back cover

Predominantly black back cover results in a low population of high grade copies on the census

Marvel ⋅ 1969

Low
$12
Mid
$35
High
$115

2nd Print ⋅ Marvel ⋅ 1994

Low
$1
Mid
$2
High
$3

UK Edition ⋅ Marvel ⋅ 1969

Low
$15
Mid
$45
High
$155
Low
$60
Mid
$185
High
$630

Key Facts

1st appearance of Sunfire, a Japanese mutant who has the power to generate fire and fly

UK Edition ⋅ Marvel ⋅ 1970

Low
$30
Mid
$85
High
$280

Marvel ⋅ 1969

Low
$12
Mid
$40
High
$125
Low
$55
Mid
$165
High
$575

Key Facts

Final appearance of the original team in the X-Men title

Following this issue, the title published reprinted stories for five years until X-Men #94, preceded by Giant Size X-Men #1 (1975)

Amazing Adventures #12 (1972) explained that the X-Men went into hiding due to public outrage resulting from this battle with the Hulk in Las Vegas

UK Edition ⋅ Marvel ⋅ 1970

Low
$15
Mid
$50
High
$160

Marvel ⋅ 1970

Low
$12
Mid
$40
High
$130

Key Facts

Reprint of X-Men #12 and #13, the first and second appearance of the Juggernaut

Marvel ⋅ 1970

Low
$8
Mid
$25
High
$90

Marvel ⋅ 1971

Low
$8
Mid
$25
High
$90

Marvel ⋅ 1971

Low
$10
Mid
$30
High
$95

Marvel ⋅ 1971

Low
$10
Mid
$30
High
$95

Marvel ⋅ 1971

Low
$5
Mid
$20
High
$65

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