I think all the Viking Forge ones are the later Jez Goodwin Asgard orcs, but as Duncan says, they might be able to help.
It might also be worth contacting Alternative Armies. They produce the 15mm version of this figure (in a pack of "Mountain orcs"), and it's possible that they have the moulds for the bigger versions too. They certainly have a a fair bit of the early Asgard stuff in production.