Fender Pedal Steel.

Apparently this is a student model. It has only one neck. I bought it second hand, and to be honest I can't play it. However I did work out how to do some cool things with it on the recording. It appears on Summer, in the last verse,Listen To Summer. Cathedral, just before the drums drop out, and on the end of Treeline. Everything else you hear is either the Tele, as on TRB, or conventional slide.