At 37 seconds he hears his low E buzz and casually slides the capo a little closer to the fret with his thumb. So smooth.
Yes, that is his "F-30 Special" number 2 (Braz back and sides and Grover Rotomatics) from around 1967 he is using in the video. You can identify it by the 3 (and other) unique spots on the pickguard which his otherwise identical number 1 does not have.Seems like an F-30 isn't it ?