SANDMAN, THE #3, 1975. Gotta love the monkey with the mechanical brain. Royer inks.
JOURNEY INTO MYSTERY #53, 1959. Giant robots attack, more Atlas sci-fi fun. The actually story for this cover was drawn by Don Heck.
STAR SPANGLED COMICS #42, 1945. More from the wartime stretch when Simon&Kirby just did the covers for the Newsboy Legion stories. Y’know, they’re lucky those criminals kept coming up with elaborate traps with lions rather than, I dunno, just shooting them.