It was a slight separation at the end of the fingerboard at/beneath the adjustable nut. Nothing a good repairman couldn't seal up in nothing flat, unless I'm sorely mistaken. I'd never seen it nor noticed it until I sold it and heard from the buyer, an honest mistake on my part, but again, I could be wrong, I can't see this being anything that a good repairman couldn't remedy really quick.
A shame this seems to follow this axe, it's easily the best five I ever played. Had I known about it and times had been different and I could have kept it, any of several repairmen here in Nashville would have spot-glued it and smoothed/buffed the spot, and that would have been that.
This bass lived a very careful life when I had it, and was never dropped, abused, or ignored. I think the pics will bear that out. I was always very fussy about my Alembics.
But to be honest, I can only speak of my time with it, and have no clue where it's been since I sold it. But it was babied when it was here.