From the cover of "Thrilling Comics" #11, 1940. The profile drawing is by Alex Schomberg. I don't know who drew the Charles Burns-looking face in the circle.
Last year, I did three weeks of nothing but Jack Kirby in the Seventies. I was reminded of it while scrolling through this amazing Mosaia page (screenshot above) that has been collecting every 4CP post since the beginning. My blog's entire run is literally on one page, and you can link back to the enlargements directly from Mosaia.