It Is A Real Fender Product
In the mid-80s to early 90s, Fender sold unfinished vintage style maple and rosewood board Strat necks and Maple Tele necks. You can tell these by the medallion in the back of the headstock as shown on the picture. Fender then stopped selling these when (I believe) it started going after the replacement neck vendors before settling on the "Licensed by Fender" logo you see on Warmoth, Allparts, Mighty-Mite and W.D. replacement necks. For a brief period of time (late 90s-early 00s), Fender again sold vintage necks separately (this time, finished New American Vintage ones), but that too ended a few years ago. I have a 1986 medallion rosewood board Strat neck; it's on a Warmoth alder body and it's my # 1 Strat -- the neck is great!