Hey team, I'm not sure about "real" nitro finishes or what year had what finishes and all that what-not. But I do know this is my 2017 '63 a AVRI. It was said to have a "flash nitro" finish. Whatever that means. I did not "relic it." And it wore out pretty fast. The paint is very thin and it dings very easily. I might be a little hard on my basses. The paint on the forearm wore away pretty quickly. I did leave it outside and the Olympic white "yellowed." But the rest of it is just from being played a lot and not being handled with kid gloves.