Jeff, nice find.
I'm not an Aikido student, but I can imagine that the historical value of that footage must be great.
You Aikido guys are fortunate to have such a video legacy of your founder. As far as I know, us Hapkido guys don't have anything that comes close... the only footage I've ever seen of our founder, Choi Yong Sool, are a couple of old 8mm clips filmed in the late 70s, and a video of him giving a speech at a dinner of some sort.