I have a fretless unlined Jazz neck that I've had for awhile. I believe it is made by Schecter probably 80's vintage with ebony fretboard and brass nut. The board has some minor wear from roundwounds (had it mounted on my original '71 Fender Jazz but removed when sold with the original fretted neck). I can provide more photos if you are interested.
http://www.talkbass.com/forum/showthread.php?t=481148
http://www.talkbass.com/forum/showthread.php?t=481148