Key Collector Comics

Action Comics  (1938)

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Action Comics #240
Non-Key

DC ⋅ 1958

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Action Comics #240
 
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$70
Mid
$205
High
$675
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Action Comics #243
Non-Key

DC ⋅ 1958

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Action Comics #243
 
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$30
Mid
$90
High
$295
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Action Comics #244
Non-Key

DC ⋅ 1958

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Action Comics #244
 
Low
$40
Mid
$125
High
$410
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Action Comics #245
Non-Key

DC ⋅ 1958

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Action Comics #245
 
Low
$15
Mid
$45
High
$145
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Action Comics #246
Non-Key

DC ⋅ 1958

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Action Comics #246
 
Low
$20
Mid
$65
High
$215
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Action Comics #247
Non-Key

DC ⋅ 1958

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Action Comics #247
 
Low
$50
Mid
$150
High
$500
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Action Comics #249
Non-Key

DC ⋅ 1958

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Action Comics #249
 
Low
$30
Mid
$85
High
$290
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Action Comics #250
Non-Key

DC ⋅ 1959

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Action Comics #250
 
Low
$30
Mid
$90
High
$295
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Action Comics #251

DC ⋅ 1959

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Action Comics #251
 
Low
$35
Mid
$110
High
$350
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Key Facts

Full page teaser ad of the first appearance of Supergirl in Action Comics #252

Action Comics #252
Non-Key

Foil ⋅ DC ⋅ 2025

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Action Comics #252
 
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$1
Mid
$2
High
$7
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Action Comics #252
Non-Key

Facsimile ⋅ DC ⋅ 2025

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Action Comics #252
 
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$1
Mid
$2
High
$4
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Action Comics #253

DC ⋅ 1959

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Action Comics #253
 
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$70
Mid
$205
High
$765
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Key Facts

2nd appearance of Supergirl

Action Comics #254

DC ⋅ 1959

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Action Comics #254
 
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$70
Mid
$350
High
$910
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Key Facts

1st appearance and origin of Bizarro #1, an imperfect version of Superman

Action Comics #256

DC ⋅ 1959

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Action Comics #256
 
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$20
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$60
High
$205
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Key Facts

1st appearance of Dick Wilson, later Dick Malverne, a love interest of Supergirl

Action Comics #257
Non-Key

DC ⋅ 1959

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Action Comics #257
 
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$20
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$60
High
$200
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Action Comics #258
Non-Key

DC ⋅ 1959

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Action Comics #258
 
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$35
Mid
$100
High
$340
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Key Facts

2nd cover appearance of Supergirl

Action Comics #259
Non-Key

DC ⋅ 1959

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Action Comics #259
 
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$20
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$60
High
$200
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Action Comics #260
Non-Key

DC ⋅ 1959

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Action Comics #260
 
Low
$18
Mid
$55
High
$185
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Action Comics #262

DC ⋅ 1960

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Action Comics #262
 
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$15
Mid
$50
High
$160
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Key Facts

Introduction of the concept that Kryptonians derive their powers from Earth's yellow sun

Introduction of the concept that Kryptonians are as powerful as ordinary humans under their native planet's red sun

Action Comics #264
Non-Key

DC ⋅ 1960

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Action Comics #264
 
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$25
Mid
$70
High
$235
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Action Comics #265
Non-Key

DC ⋅ 1960

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Action Comics #265
 
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$20
Mid
$65
High
$210
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Action Comics #266
Non-Key

DC ⋅ 1960

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Action Comics #266
 
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$30
Mid
$85
High
$275
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Action Comics #268
Non-Key

DC ⋅ 1960

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Action Comics #268
 
Low
$18
Mid
$55
High
$180
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Action Comics #269
Non-Key

DC ⋅ 1960

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Action Comics #269
 
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$15
Mid
$40
High
$140
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Action Comics #270
Non-Key

DC ⋅ 1960

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Action Comics #270
 
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$15
Mid
$45
High
$145
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Action Comics #271
Non-Key

DC ⋅ 1960

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Action Comics #271
 
Low
$12
Mid
$40
High
$135
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Action Comics #272
Non-Key

DC ⋅ 1960

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Action Comics #272
 
Low
$18
Mid
$55
High
$175
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Action Comics #273
Non-Key

DC ⋅ 1960

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Action Comics #273
 
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$15
Mid
$45
High
$145
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Action Comics #274
Non-Key

DC ⋅ 1961

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Action Comics #274
 
Low
$15
Mid
$45
High
$155
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Action Comics #275

DC ⋅ 1961

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Action Comics #275
 
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$18
Mid
$60
High
$180
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Key Facts

First mention of Superman's Heat Vision power - previous issues demonstrated his X-Ray vision having powers to melt glaciers

Debut of Red/Green Kryptonite - causes mutations including an extra eye on the back of Superman's head

Action Comics #276

DC ⋅ 1961

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Action Comics #276
 
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$120
Mid
$400
High
$1.2k
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Key Facts

1st appearance of Sun Boy, a solar-powered member of the Legion of Super-Heroes

1st appearance of Phantom Girl, a member of the Legion of Super-Heroes who has the ability to phase through objects

1st appearance of Triplicate Girl, a member of the Legion of Super-Heroes who can split into three identical bodies

1st appearance of Bouncing Boy, a density-changing member of the Legion of Super-Heroes

1st appearance of Shrinking Violet, a member of the Legion of Super-Heroes who can shrink to sub-atomic size

1st appearance of Braniac 5, a genius and time-traveling member of the Legion of Super-Heroes

Supergirl joins the Legion of Super-Heroes

Action Comics #277
Non-Key

DC ⋅ 1961

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Action Comics #277
 
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$20
Mid
$65
High
$210
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Action Comics #278
Non-Key

DC ⋅ 1961

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Action Comics #278
 
Low
$12
Mid
$40
High
$135
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Action Comics #279

DC ⋅ 1961

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Action Comics #279
 
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$15
Mid
$45
High
$155
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Key Facts

1st appearance of Lesla-Lar, a Kryptonian who escaped from the bottled city of Kandor

Action Comics #280
Non-Key

DC ⋅ 1961

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Action Comics #280
 
Low
$25
Mid
$80
High
$270
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Action Comics #281
Non-Key

DC ⋅ 1961

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Action Comics #281
 
Low
$25
Mid
$70
High
$225
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Action Comics #282
Non-Key

DC ⋅ 1961

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Action Comics #282
 
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$15
Mid
$45
High
$150
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Action Comics #283
Non-Key

DC ⋅ 1961

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Action Comics #283
 
Low
$10
Mid
$30
High
$105
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Action Comics #284
Non-Key

DC ⋅ 1961

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Action Comics #284
 
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$20
Mid
$60
High
$200
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Action Comics #285

DC ⋅ 1962

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Action Comics #285
 
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$20
Mid
$65
High
$340
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Key Facts

Supergirl is introduced to the world

Classic cover art by Curt Swan

Action Comics #286
Non-Key

DC ⋅ 1962

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Action Comics #286
 
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$10
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$30
High
$105
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Action Comics #287
Non-Key

DC ⋅ 1962

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Action Comics #287
 
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$15
Mid
$45
High
$145
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Action Comics #288
Non-Key

DC ⋅ 1962

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Action Comics #288
 
Low
$12
Mid
$40
High
$125
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Action Comics #289

DC ⋅ 1962

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Action Comics #289
 
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$15
Mid
$45
High
$145
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Key Facts

1st appearance of Luma Lunai, an alien woman whose powers would not function under the yellow sun of Earth

In the story where Supergirl attempts to find a wife for Superman, he discloses to here that he would marry her if Earth's laws allowed cousins to be wed - tap cover and swipe to view panel

Action Comics #290
Non-Key

DC ⋅ 1962

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Action Comics #290
 
Low
$8
Mid
$25
High
$85
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Action Comics #291

DC ⋅ 1962

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Action Comics #291
 
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$15
Mid
$50
High
$150
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Key Facts

First meeting of Supergirl and Mr. Mxyzptlk

Action Comics #292
Non-Key

DC ⋅ 1962

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Action Comics #292
 
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$10
Mid
$30
High
$105
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Action Comics #294
Non-Key

DC ⋅ 1962

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Action Comics #294
 
Low
$15
Mid
$45
High
$145
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Action Comics #295
Non-Key

DC ⋅ 1962

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Action Comics #295
 
Low
$12
Mid
$40
High
$130
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Action Comics #296
Non-Key

DC ⋅ 1962

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Action Comics #296
 
Low
$10
Mid
$30
High
$100
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