Source: "Superman" #278. Originally published in 1944.
Sources:"Justice League of America" #115. Art Dillon/Giordano.
"The Brave and the Bold" #115. Art Kane/Anderson
"Action Comics" #408
Source: "The Brave and the Bold" #117. Art by George Papp
Source: A reprint in"Tomb of Darkness" #11. Art: Jack Kirby
Source: "Astonishing Tales" #11 via "Crypt of Shadows" #18. Art appears to be Jack Kirby inked by Steve Ditko.
Source: "Strange Tales" #108 - Jack Kirby
Extreme zooms of details from this frame are posted here: http://4cp.posterous.com/41-185
Source: "Strange Tales" #102. Jack Kirby.
Source: "Strange Tales" #144
