Cover: Curt Swan & George Klein

Action Comics #303

Aug 1963 · DC · 0.12 USD

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Contains 4 stories

The Monster from Krypton!

11.67 pp · Superhero

Superman [Clark Kent]SupergirlJimmy OlsenLois LaneSuperman Emergency SquadPerry White (cameo)Jor-El (flashback)Lara (flashback)

Untitled Humor story

0.67 pp · Humor

Tricksy

Supergirl's Big Brother!

11.67 pp · Superhero

Supergirl [Linda Danvers]Fred DanversEdna DanversJan Danvers [Biff Rigger]Lori Lemaris (cameo)Jerro (cameo)

Untitled Humor story

0.67 pp · Humor

Shorty

ComicBooks.com Value

Our Model is In Beta

Raw (VG) $19

CGC 9.6 · 4 in census $780

CGC 9.4 · 5 in census $573

CGC 9.2 · 4 in census $497

CGC 9.0 · 4 in census $259

CGC 8.5 · 9 in census $159

CGC 8.0 · 4 in census $124

Show all 18 grades ▾

CGC 7.5 · 6 in census $103*

CGC 7.0 · 2 in census $88*

CGC 6.5 · 4 in census $72*

CGC 6.0 none in existence

CGC 5.5 · 1 in census $56*

CGC 5.0 · 3 in census $54*

CGC 4.5 · 2 in census $42*

CGC 4.0 · 1 in census $40*

CGC 3.5 · 3 in census $32*

CGC 3.0 none in existence

CGC 2.5 · 1 in census $23*

CGC 2.0 none in existence

* estimate — limited direct-sales data at this grade

Our model’s value — refined as new sales data arrives · CGC census counts shown where available

More listings for this title

VERY GOOD $5.49 GD $9.25 VG $9.99 GD $11 VG $12 GD $13.41 GD $14.95 VG $14.95

Related listings we couldn't confirm as this exact issue · 55 total · seen 54 days ago

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Full credits

writer Leo Dorfman

artist, inker Jim Mooney

cover pencils Curt Swan

cover inks George Klein

Reprints

↩ Reprints Blackhawk #127 (1958)

Reprinted in Sea Devils #34 (1967), Star Album (Supermoça) #20 (1970), Adventure Comics #420 (1972), The Superman Family #175 (1976), The Silver Age of Superman The Greatest Covers of Action Comics from the '50s to the '70s #[nn] (1995), Showcase Presents: Supergirl #2 (2008), Showcase Presents: Superman #4 (2008), Supergirl: The Silver Age Omnibus #1 (2016), Supergirl: The Silver Age #2 (2018)

Key issues in Action Comics

★

#1 1st appearance — Clark Kent

★

#252 1st appearance — Kara Zor-El

★

#276 1st appearance — Brainiac 5

★

#267 1st appearance — Gim Allon

★

#241 1st appearance — Fortress of Solitude

★

#23 1st appearance — Lex Luthor

★

#242 1st appearance — Brainiac

★

#340 1st appearance — Parasite

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