Limited run of roughly 75 in 1988. Many more Unity series basses around. These are as rare as hens teeth these days with a total of 9 accounted for in 10 years of searching. Solid Koa, neck through with Bloodwood stringers, hand-rubbed Tung oil finish, (FAST neck!). Ebony fret board. Kahler trem. Non-original pick-ups in this one, I have no idea, and can't find any info on, what the originals were. One of the best electrics I've ever used in 40+ years of using a boatload of different axes.....