I've just picked up this bass today and it has more mojo than I know what to do with! It's an ESP stamped 3 piece ash body with an ESP stamped neck, ESP stamped neck plate, vintage BadAss II, vintage Fender stamped tuners and an equally vintage DiMarzio pickup. I'm guessing this was from back in the days when ESP were Electric Sound Products and just made parts, rather than whole instruments.
I used to have an ESP parts catalogue (this would have been in about '87) but I don't know when it was from.
Does anyone else have anything like this? I'd love to see it if you do because it doesn't seem very easy to find any info.