13-3/8x20-1/8" artboard has pen and ink original art by Jack Kirby (1917-1994) w/inks by frequent Kirby collaborator Vince Colletta (1923-1991). Art is for page 18 (story page 14) of Thor #142, published by Marvel July 1967. Art is from "The Scourge Of The Super-Skrull" storyline by Stan Lee and features four panels, each of them showing Thor battling the Super-Skrull; landing Mjolnir strikes on him in first two panels as the Super-Skrull uses the Invisible Girl's invisible force field to protect himself. The third panel shows the Super-Skrull accessing the "Blustering, Battering, Bludgeoning Power Of The Titanic Thing" to throw Thor off-balance, holding him aloft in last panel. Top margin has small inkstamped "Thor" title with issue and page numbers in red ink along with penciled editorial notation at upper right. Partial pencil editorial notation visible along upper left margin. Back of artboard has partial Comic Code Authority inkstamp and four strips of mounting tape have been added along top margin edge. Art remains clean and Exc. Great action-packed example of Kirby's Silver Age Thor comic art, featuring a classic Fantastic Four villain.