This guy is part number 70155/1. He was released in July 1995 (announced in White Dwarf 187) and is a Jes Goodwin sculpt.
1994 sculpt. His right arm was the usual storm bolter 0441/4 and the left was the Crozius Arcanum 70155/2.
This chap came in the Devastator box back in 1993. In the 1998 catalogue he’s shown as Sergeant 2, part number 010100901 and in the 2005 he’s Sergeant 2 but part number 99060101279. He’s a 1992 Jes Goodwin sculpt.
Update: Found him in the 1995 catalogue as Space Marine Sergeant 2, part number 0813/1.
Colours used:
Undercoat: Vallejo Mecha Black
Blue base: Scale75 Artist Cobalt Blue SART-27
Blue highlight: Scale75 Artist Primary Blue SART-03
Blue shade: 50:50 Scale75 Instant Paralyze Blue SIN-18 and Instant Fairy Blood SIN-12
Red base: Scale75 Artist Crimson
Red highlight: Scale75 Artist Primary Red SART-05
Red further highlight: Scale75 Artist Orange SART-22
Red shade: Scale75 Instant Health Red SIN-03
Purity seal bone colours: Scale75 Off White SART-47
Lenses: Scale75 White Ink followed by Scale75 Fluoro Green