This Rogue Trader Space Marine was Capt. Huron Grimm initially, and seen as Chainsword 2, part number 070119/36 in the 1991 catalogue. He’s a Bob Naismith sculpt from 1987.
Marked as GW 87 on the back – nothing on the front on this guy.
Metal Rogue Trader Warhammer 40K Captain Huron Grimm