I’m showing that reprint, plus another reprint from the issue of the Rex Dexter story from Mystery Men Comics #4 (1940). The second story has Rex and his galpal Cynde encountering a villain, grandly named Lord Marvel, on a planet, Ursis, The first story has Rex encountering a villain with the excellent moniker of Boris Thorax, who is somehow able to get planet Tarsis to hit our planet.
Stories written and drawn by Dick Briefer.
Here is the story I posted last October. Just click on the thumbnail: