Below is a C7 carded Antron. This one is on an regular Mego card and features that wonderful artwork associated with all of the American released aliens packaging. It's important to note that the card art features an Antron with a dark green brain, lending credibility to the theory that the initial aliens were the ones with the varied-colored brains and that Mego later standardized on a single light green color for the brain plastic.
Anothe sidenote: the back of all the aliens cards improperly (or properly, depending on how you look at it) names Acroyear as Acroyear II and vice versa.
Click on the figure of Antron to see a close-up of him.