LEGO Set 8851-1-b1 Bulldozer (1984 Technic) | Rebrickable - Build with LEGO
LEGO Technic Pneumatic Excavator 8851. - YouTube
Technicopedia: 8851
LEGO® Technic 8851 Excavator – LC-jrx
Recently pieced together this old pneumatics set from 1984 from a used lot so I thought I would compare it to some of my more modern pneumatic sets : r/lego
LEGO Technic Excavator (8851) original instructions manual | eBay