Space Theme Sets - LEGO 6894 Invader Original Vintage Blacktron Space Ship Set
LEGO 6894 Blacktron Invader | BrickEconomy
After digging through a box of gifted LEGO for hours and only one piece of the instruction booklet left, I finally completed this. 6894 Blacktron Invader : r/lego
LEGO Space Blacktron #6894 Invader - Complete, No Box, No Instructions, 1987 | eBay