Title page. Same image as cover.
Illustration taken from the splash page of "The Dynamic Duo of Kandor" from Superman's Pal, Jimmy Olsen (DC, 1954 series) #69.
Illustrated with panels from "The Super-Duel of Space" from Action Comics (DC, 1938 series) #242 and "Let My People Grow" from Superman (DC, 1939 series) #338.
Illustrated with a panel from "Showdown" from The Superman Family (DC, 1974 series) #194.
Kandor is referred to only as "Krypton City." It is depicted as a very wide-necked bottle like the Swan drawn newspaper strip version, not the Plastino narrow-necked comic magazine version.