Lego helmet space space polybag red helmet 3842a 193au set 6970 497 928 926 | eBay
BrickLink - Part 50665 : LEGO Minifigure, Headgear Helmet Space / Town with Thick Chin Strap - with Visor Dimples (Reissue with Top Dimple) [Minifigure, Headgear] - BrickLink Reference Catalog
LED #24 LEGO Element Daily 1980 something space guy with cracked thin chin strap - YouTube
Bricker - Part LEGO - 193au Minifig, Headgear Helmet Old with Thin Chinstrap - Visor Dimple Presence Undetermined
BrickLink - Part 193au : LEGO Minifigure, Headgear Helmet Space / Town with Thin Chin Strap (Undetermined Type) [Minifigure, Headgear] - BrickLink Reference Catalog