Shrine '69's version of Rollin' Man

[slipkid]

I sent this song via e-mail to a friend who loves late 60's blues guitar. As one who plays the drums, I don't have the technical knowledge of a guitarist, so I need to ask:



My friend thinks that "Rollin' Man" at the Shrine is done via the wah pedal. He thinks the "'Clapton woman tone" early in the song is a wah in one position, and the later tone is the wah in the opposite. I thought it was the bridge pup on, and then both pups of equal volume out of phase. So to answer, was Green using a wah pedal in 1/69 just for effect control??? I think my friend's head would explode if he realized it was just a Gibson Les Paul with a reverb box into an first gen. Orange amp. I need an answer before the end of next week.