I purchased a set of the OEM Moab wheels a while back, and I had four of the top version and one of the bottom version. It is worth noting that the bottom version is MUCH lighter than the top version. The bottom version just felt cheaper to me for some reason. I didn't like it and so I ended up giving the one I had away for free.
Interesting find. Are you sure the bottom one you had wasn't an aftermarket replica by chance? Not sure if they ever made them, but I suppose it's possible.