Key Collector Comics

Showcase  (1956)

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Showcase #6
DC ⋅ 1957
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Showcase #6
 
Low
$380
Mid
$1.2k
High
$3.5k

Key Facts

1st team appearance and origin of the Challengers of the Unknown: Ace Morgan, Red Ryan, Prof Haley and Rocky Davis

Created by Jack Kirby, this team is said to be a precursor to the development of the Fantastic Four

Of the 208 copies in the census, only 11 grade higher than 6.0

Showcase #7
DC ⋅ 1957
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Showcase #7
 
Low
$190
Mid
$765
High
$1.9k

Key Facts

2nd team appearance of the Challengers of the Unknown

1st appearance of June Robbins, joined The Challengers

1st appearance of Ultivac, a sentient robot

📣 Signature Auction: New High [Previous High]

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9.4 sold for $19,200 [No Previous Data]

Showcase #11
Non-Key
DC ⋅ 1957
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Showcase #11
 
Values Coming Soon

Key Facts

Non-Key Issue. No additional information is available.

Showcase #12
Non-Key
DC ⋅ 1958
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Showcase #12
 
Values Coming Soon

Key Facts

Non-Key Issue. No additional information is available.

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