Chris Casady, animator on Star Wars and The Empire Strikes Back shot photographs using a stereoscopic camera in 1976/77 while employed at ILM. Chris made 3-D portraits of the props, the environment, and fellow coworkers not realizing the film Star Wars would be a smash hit, but knowing the models looked really cool. 

The 3-D images feature close-ups of the Rebel spaceships, the Millennium Falcon, X-Wing and T.I.E. Fighters, Sand Crawler and Luke's Land speeder, stages, machine shop, props and the Death Star.

Attached are 6 photographs that Chris took of Artoo unit number 3.