This is identical to the OER Zark. Since I don’t have a box for this one, the only way I can be sure I have a Rado, is that I got it in a lot with a bunch of other Robostruxes, back when OERs were not widely available outside of Europe (no ebay in 1995).
So far, this one’s staying MIB until I can make more shelf room. I did take out the bonus “present” for this set, though. It’s the other sprue from Remodel Set No. 1!