This an 80ties Ibanez neck that I bought recently for a project, which I decided not to pursue after all. The seller sold it as a 1983 RB630, given the body that the seller also had but that i didn't get, it must have come off one of these http://www.ibanezrules.com/catalogs/us/1983_84/bass/p10.jpg. While the butt end conforms to a Fender-style neck pocket, it has the extra length between the neck screws that you see on Japanese basses of the era. Maple, looks in real nice shape, no obvious dings that I could spot, frets look clean, truss rod works fine. Let me know of any questions.