These recordings were discussed on the Blindman's Blues Forum, and I thought they would be worth mentioning here too.
http://www.amazon.co.uk/Lost-Blues-Tapes-American-Festival/dp/B000295V5S/ref=sr_1_1?s=music&ie=UTF8&qid=1324894628&sr=1-1
Cheers
Pan
http://www.amazon.co.uk/Lost-Blues-Tapes-American-Festival/dp/B000295V5S/ref=sr_1_1?s=music&ie=UTF8&qid=1324894628&sr=1-1
Cheers
Pan