Slide bass?

[PhR75]

John Sauter playing blues with a slide, a late 70's recording a presume:

 

[Rich Fiscus]

Also Them Crooked Vultures, which I posted above. JPJ at his most inventive, imho.

JPJ is a monster lap steel player, bass or otherwise. I remember reading that he built his first bass lap steel himself, back in the 60s. These days Hugh Manson builds them.