Designed by Jes Goodwin. This one was Traitor 2, 070204/8 in the 1991 Blue catalogue. It’s a 1989 sculpt.
This copy seems to have had one knee shaved down:
Rogue Trader Traitor Chaos Space Marine Terminator Warhammer 40K
Designed by Jes Goodwin. This one was Traitor 2, 070204/8 in the 1991 Blue catalogue. It’s a 1989 sculpt.
This copy seems to have had one knee shaved down: