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Superman #20 cover
Cover: Jack Burnley

Superman #20

Jan 1943 · DC · 0.10 USD
📊 ~45,458 copies sold its debut month
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In "Superman's Secret Revealed!", the Man of Tomorrow faces a unique challenge when an enthusiastic fan dons a costume and insists on aiding him in taking down the menacing Leopard. Written by Jerry Siegel and illustrated by John Sikela, this 1943 classic captures Superman navigating both crime-fighting and an unexpected admirer, all under Jack Burnley’s dynamic cover.

Contains 7 stories
Superman's Secret Revealed!
13 pp · Superhero
Superman [Clark Kent]Ironjaw Grogan (villain, introduction), Lois LanePerry WhiteLuthor (cameo, villain)Puzzler (cameo, villain)Prankster (cameo, villain)Adonis (cameo, villain)Ultra (cameo, villain)Bruce Wayne (cameo)Dick Grayson (cameo)
Untitled Humor story
1 pp · Humor
Destroyers from the Depths
13 pp · Superhero
Superman [Clark Kent]Lois LaneTomAdolf Hitler (villain)Herr Fange (villain, introduction, dies)
Untitled Humor story
0.5 pp · Humor
Lair of the Leopard
13 pp · Superhero
Superman [Clark Kent]Lois LanePerry WhiteCal JohnsonHerman the Heroic [Herman Hoskins] (introduction)The Leopard [Sam Kennedy] (villain, introduction)

In "Lair of the Leopard," Superman faces a new kind of challenge when Cal Johnson, a devoted fan, dons a heroic costume and insists on aiding him in tracking down the elusive villain The Leopard. With Lois Lane and Perry White at the Daily Planet, and a mysterious new hero named Herman the Heroic stepping into the spotlight, Superman must navigate both the dangers of the case and the unexpected enthusiasm of a self-proclaimed sidekick.

Untitled Humor story
2 pp · Humor
Chesty McGurk
Not in the Cards
13 pp · Superhero
Superman [Clark Kent]Harlow Gates (dies)Jim CameronPeter FellowsPhilip BrandonJake ClymerMorton ThorntonThe Puzzler (villain)

ComicBooks.com Value

Our Model is In Beta
Raw (Good) $374
CGC 9.4 · 5 in census $10,560*
CGC 9.2 · 2 in census $6,778*
CGC 9.0 · 6 in census $6,487
CGC 8.5 · 5 in census $3,284*
CGC 8.0 · 8 in census $2,576*
CGC 7.5 · 9 in census $2,093
Show all 20 grades
CGC 7.0 · 11 in census $1,718*
CGC 6.5 · 7 in census $1,385
CGC 6.0 · 21 in census $1,376
CGC 5.5 · 12 in census $1,223
CGC 5.0 · 10 in census $983
CGC 4.5 · 19 in census $851
CGC 4.0 · 15 in census $781
CGC 3.5 · 9 in census $658*
CGC 3.0 · 5 in census $581
CGC 2.5 · 11 in census $420
CGC 2.0 · 6 in census $382
CGC 1.5 · 5 in census $309*
CGC 1.0 · 3 in census $258*
CGC 0.5 · 6 in census $186
* estimate — limited direct-sales data at this grade
Our model’s value — refined as new sales data arrives · CGC census counts shown where available

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Cast · 1 character

Full credits

artist, inker John Sikela
cover pencils, inks Jack Burnley

Reprints

Reprinted in Superman from the Thirties to the Eighties #[nn] (1983), The Superman Archives #5 (2000), Superman: The War Years 1938-1945 #[nn] (2015), Superman: The Golden Age Omnibus #3 (2017), Take That, Adolf!: The Fighting Comic Books of the Second World War #[nn] (2017)

Key issues in Superman

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