This is another of my favorite Silver Age comics, GORGO #1, a movie adaptation drawn by Steve Ditko, and published in 1960. Ditko went on to draw a couple more issues of GORGO, but this one is the only one I still have. These scans are from the 1966 reprint in FANTASTIC GIANTS. At the bottom are the front and back covers from GORGO #1, which were not drawn by Ditko.
GORGO #1, Copyright © 1960 King Bros. Productions, Inc.
FANTASTIC GIANTS Copyright © 1966 Charlton Comics Group