Jaco got the prototype, which can now be seen at Sam Ash’s on 34th Street NYC (it has its own little shrine).
You can see Jaco’s name above the Hartke cab he is plugged into. The bassists from far left are . . .
Jaco on the very left, Darryl Jones (now with the Stones), Jerry Peak and Bill “the Buddha” Dickens on the far right side of the stage.