There used to be a guy here over in the Special Production subforum that could look up the VIN and see if it was one of the Limited Editions. He has given up those duties and nobody else has taken it on. It looks like the only other possibility might be someone on Facebook that does the same thing.
Hop over to our Special Production subforum and there's a thread in there about "35th Anniversary-moving on" (or something to that effect) and it contains a link to the Facebook group being referenced.