I've mentioned about five times now why everyone needs to buy this Free DVD, so I don't feel guilty about putting a link to one of the performances here. This is All Right Now from the Isle of Wight movie. I'm linking to it as it was mentioned in a comment to my review of John Martyn's Live at Leeds.
This edit has a lot less of Kossoff and his famous facial expressions than the classic edit (available on the DVD), but whenever the classic edit gets on to YouTube, it gets taken down again. I dunno why. If you search YouTube regularly you might find it. It usually has the letter "S" in the top right corner.
Meanwhile, you'll just have to make do with this low-Kossoff version. Or buy the Free DVD as previously hinted. The bit to watch of course, is the guitar solo. Ignore the hairy with the mikestand. At least for today.