Bring On the Back-ups: "Up Pops the Atom!" by Maggin, Dillin, and Giordano

Hey, hey, hey, Groove-ophiles! Here's a classic Atom back-up from Action Comics #430 (September 1973) by Elliot S! Maggin, Dick Dillin, and Dick Giordano! Did Mego even get a mention in this "superhero-toy"-centric tale of "Up Pops the Atom!"?