This was an educational short from 1955. I remember seeing back then as a kid and being impressed by the man's artistry. The film isn't as shiny new after all these years, but I'm sure it will outlast me. I wish it could be restored like some of the classic movies have been. (Me, too.)
https://youtu.be/mZZmbGvDXMw
Amazing what you can find on YouTube.
Sculpture is a remarkable skill. I wonder if this film influenced other sculptors like Blaine Gibson
who went on to model all those Presidential likenesses for Disney theme parks.