If I recall correctly, this was a test sculpt done for GW, then it was released by another company (New Wave, I believe, who later mutated into CMON) with some modifications, mainly the medusa head instead of what was, I believe, originally a GW orc head. We're talking around 20 years ago though, so my memory is a bit hazy on the details. Sculptor was either Kev White or Steve Buddle.