TALES TO ASTONISH #52, 1964. After returning to Hank Pym’s adventures for a few issues to oversee his change from Ant-Man to Giant-Man (by changing his powers, although you could just as easily have had him join the army to become G.I.Ant-Man). Sol Brodsky, Marvel production manager extrordinaire, inked this one, and we get a nice Kirby winged horse.
Giant-Man/Ant-Man is always getting abum rap, but I think Kiby’s covers for this series were some of his best. And I was always a sucker for white backgrounds. The color on those books was outstanding.