GREEN HORNET #7, 1942. An early Harvey cover, signed Jon Henri. There seem to be other hands in here, probably Joe Simon, but there's a lot of Kirby in that killer clown. I like some of those other features, Blonde Bomber the Newsreel Ace, Mighty Midgets.
ACTION COMICS #638, 1989. A very nice image of Etrigan, very sharply inked by Terry Austin, one of a few chances he had to ink Kirby. This is also Kirby's last published work for DC.