An audience recording of Windsor exists, not of the finest quality, of course, but still it's better to have it than nothing! They played two sets on that date according to Bob Brunning's book, the bootleg has probably the entire first set, and it lasts less than half an hour. The second set (an hour long) was supposedly more jam-based than the first one.
But I wasn't there, I was born a dozen years too late for it anyway.
