This is so great!
While researching View-Master, the video after the break popped up in results. It’s a live TV show I’d never heard of called Success Story and was done on location live(!).
This particular episode gives a comprehensive tour of View-Master headquarters which includes the factory and art production!
Some of the figures used in 3D reels:
An example of production:
They used a single camera in studio and racked it to the side, changing the inter-ocular distance to achieve a desired effect and also move a foreground object for an additional special effect!
Florence Thomas, one of the figure artists:
Joe Liptak, another figure artist:
This really should be seen!