It's just that it reminds me of a Special Addition launched in 1998 like the one below. Islay has a 1998 Troll like the one in this photo.(special not only for the markings but a smooth skin).
islay.jpg - Bild entfernt (keine Rechte)
As the one we are talking about is dated 2009 then it is the first of the major shape change (shallow roof, taller door) and I seem to remember they came out, 2008/9, all white. The only significance of the eighth year of a decade is that the first Troll was launched in 1957/1958 and I have seen otherwise standard vans marked Jubilee for 1988 and 1998.
Randa