Stan Lee Speaking in 1966
Sean Howe (author of Marvel Comics: The Untold Story) has uncovered a 1966 audio tape of Stan Lee speaking at Princeton University. I first enjoyed seeing Mr. Lee on a stage at the first Chicago Comicon in 1976 but, of course, 1966 was a lifetime or two before 1976.
In this recording Jack Kirby gets a couple of nice mentions and there are boos when Stan announces that Steve Ditko is leaving Spider-Man. The audio is challenging in places but your patience will pay dividends. As I write this the youtube clip has just 143 views but I expect that count will rise dramatically in short order. You can add one to that count by going right over here.