[IMG]http://i144.photobucket.com/albums/r176/james14076/l_89bb9b8864c44b9fb3fbac2d381ac2fe.jpg[/IMG]
I don't know if you can access it from what I've given you, but the photo was bought on eBay by Zeke Schein, who believes that it's Robert Johnson (left) and Johnny Shines.