Yup, I was wrong. There's more info here:http://webcache.googleusercontent.com/s ... Review.doc
Robert Minkin, who took the above photo, says "Since most of the band’s equipment was on its way to Paris, they played borrowed instruments. Jerry sported a Strat styled Yamaha 1000 sunburst guitar and Weir, a white Fender Telecaster."
I can't find a "Yamaha 1000" though, except the SG1000, which looks nothing like it.
I'm listening to the show right now on archive.org. Good stuff! But the Yamaha sure doesn't sound like Wolf, though it's amazing that every guitar Jerry played sounds like Jerry, if you know what I mean.