1987 LEGO GROUP Vintage Lego 6894 Space Blacktron I Invader with instructions 42884068943 | eBay
LEGO 6894 Blacktron Invader | BrickEconomy
LEGO 6894 Invader Instructions, Space
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
6894: Invader - Back of the Box Builds
Just bought 156 little pieces of my childhood! Lego BLACKTRON Invader 6894 : r/lego
LEGO 6894 Invader Instructions, Space
LEGO 6894 Invader Set Parts Inventory and Instructions - LEGO Reference Guide