CATALOG RECORD

Justice League of America #20

DC · Series began 1960 · June 1963

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Dates

Cover date: June 1963
On sale: April 25, 1963
Pages: 36

Editions and covers

Original edition
Source ↗

Creators

pencils: Mike Sekowsky, Sheldon Moldoffinks: Murphy Anderson, Sheldon Moldoff, Bernard Sachsletters: Ira Schnapp, Gaspar Saladinoscript: Jack Schiff, Gardner Fox

Stories

The Mystery of Spaceman X! · 24 pages
An alien uses a giant spaceman to absorb disaster-energy to make himself invulnerable, but Superman separates the alien from his power source.

Reprinted in

The Justice League of America Omnibus (2014), Justice League of America Archives (1992), Showcase Presents: Justice League of America (2005), Justice League of America: The Silver Age (2016), Justice League of America: The Silver Age Omnibus (2016)