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 8851 Technic Excavator | BrickEconomy
LEGO Technic Excavator (8851) original instructions manual | eBay
8851 | The Lego Car Blog
8851 | The Lego Car Blog
LEGO Technic Pneumatic Excavator 8851. - YouTube
Technicopedia: 8851
LEGO 8851 Excavator Set Parts Inventory and Instructions - LEGO Reference Guide