Thanks for posting this - very cool. Here is another interesting clip from a 1964 Boston radio program which has Mississippi John Hurt and Skip James being interviewed and playing, and after a while Alan Wilson accompanies them on harp. According to the radio host, Phil Spiro, Wilson was just hanging around.
Thanks for the share Rgsccr. That's phenomenal. It's amazing to hear these old guys and then listen to the Rock that came out of the 60's era. ---------- "The only way to get better is to play a little outside your comfort zone every time you play!"