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Action Comics #321 cover
Cover: Curt Swan & George Klein

Action Comics #321

Feb 1965 · DC · 0.12 USD
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In "Superman — Weakest Man in the World!", Superman finds himself stranded on a red sun world where every native possesses super-powers—leaving him utterly defenseless. With the fate of Earth hanging in the balance, the Man of Steel must outthink the Thiefmasters' plan despite being the weakest man in a world of giants. Written by Edmond Hamilton and brought to life by Curt Swan’s iconic art and George Klein’s dynamic inks, this 1965 classic features a cover by Swan and Klein that captures the stakes perfectly.

Contains 3 stories
Superman -- Weakest Man in the World!
14 pp · Superhero
SupermanThe Four Intergalactic Thiefmasters (villains)The Thorones (intro, villains)LahlaLois LaneJimmy Olsen

In "Superman -- Weakest Man in the World!", Superman finds himself stranded on a red sun world where every other inhabitant wields super-powers, leaving him utterly powerless. Trapped and outnumbered, he must rely on wit and courage to outsmart the Thiefmasters, who threaten Earth unless he fails to stop them.

Untitled Humor story
0.67 pp · Humor, Superhero
Super-Turtle
The Enemy Supergirl!
10 pp · Superhero
Supergirl [also appears as Linda Danvers]Fred DanversEdna DanversComet the Super-HorseDebbie Porter (villain)Phantom Zone inhabitants [Jax-UrGeneral Zodfive unnamed prisoners]

When a blood transfusion saves her friend Debbie, Linda Danvers finds her life upended as Debbie gains Supergirl’s powers—along with a fractured mind that twists her into a dangerous impostor. Now, with the real Supergirl’s identity under threat, Linda must confront the woman who looks like her, speaks like her, and fights like her, but is anything but.

ComicBooks.com Value

Our Model is In Beta
Raw (VG) $8
CGC 9.8 · 2 in census $1,785*
CGC 9.6 · 4 in census $503
CGC 9.4 · 3 in census $293
CGC 9.2 · 4 in census $204
CGC 9.0 · 7 in census $99
CGC 8.5 · 14 in census $87
Show all 17 grades
CGC 8.0 · 10 in census $59
CGC 7.5 · 4 in census $59
CGC 7.0 · 2 in census $39*
CGC 6.5 · 3 in census $33*
CGC 6.0 · 2 in census $29*
CGC 5.5 · 3 in census $26
CGC 5.0 · 4 in census $23*
CGC 4.5 · 5 in census $20*
CGC 4.0 · 1 in census $20*
CGC 3.5 · 1 in census $20*
CGC 3.0 · 2 in census $20*
* 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

VG $7 FN $9.99 VG $9.99 VG $10.5 FN $10.72 VG $11 VG $13.39 VG $13.95
Related listings we couldn't confirm as this exact issue · 62 total · seen 35 days ago

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Full credits

artist Curt Swan
letterer Joe Letterese
cover pencils Curt Swan
cover inks George Klein

Reprints

Reprinted in Superman Supacomic #77 (1966), Superman #4/1967 (1967), Supermann #2/1968 (1968), Supermann #3/1968 (1968), Lynvingen #6/1968 (1968), The Silver Age of Superman The Greatest Covers of Action Comics from the '50s to the '70s #[nn] (1995), Showcase Presents: Supergirl #2 (2008), Supergirl: The Silver Age Omnibus #2 (2018), Stålmannen #4/1965, Teräsmies #4/1965

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