From the documentary "Classic Albums - Anthem to Beauty", you catch a glimpse of Garcia playing his Starfire at 15:05 and 19:02, and a glimpse of Lesh playing a Guild bass at 4:15 and 46:25.
http://www.youtube.com/watch?v=K9by0Yhlrns
walrus
http://www.youtube.com/watch?v=K9by0Yhlrns
walrus