Dane:
Ash is pretty rare for an acoustic guitar. In the Guild line, the only guitar that I know of is the D-46 (6 strings), but no 12 strings. It is more commonly used on electric guitars (being the original wood for either Stratocasters or Telecasters (I forget which, it was later changed to Alder)). I don't remember if there are other vendors who made ash bodied acoustics, but I don't think so.
Kostas