maybe written in logo?

Edit: Bruce Cornwell is in the credits as one of the Computer Animation Consultants. More info about him and some other great work here: http://vimeo.com/channels/bkcfilms/videos/rss

> Bruce and Katharine Cornwell produced dozens of highly visual animated educational films between the late 1950s and the late 1970s. They started with traditional paper and cel animation, and moved into using computer animation in its infancy in the late 1960s.