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DC Feb 1964

Action Comics #309

Action Comics #309
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$20
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$50
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$150
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Appearance of President John F. Kennedy who had been assassinated days before the issue went on sale
The mystery masquerader on the cover is JFK in disguise to help Superman conceal his identity
DC Mar 1964

Action Comics #310

Action Comics #310
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$4
Mid
$12
High
$40
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Debut of Jewel Kryptonite
Enhances the mental abilities of criminals trapped inside the Phantom Zone to affect events throughout the universe
DC Sep 1964

Action Comics #315

Action Comics #315
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Low
$8
Mid
$25
High
$100
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1st appearance Zigi and Zagi
⚠ Misconception: CGC mislabels Action Comics #316 as the first appearance of Zigi and Zagi
DC Aug 1966

Action Comics #340

Action Comics #340
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Low
$65
Mid
$185
High
$675
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1st appearance of Parasite
Interior double-page pin-up of Superman
Like Batman 181, this copy has a centerfold newsprint pin-up that is often missing, so when buying a raw copy remember to double-check for it or ask the seller if it is intact

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