Interesting article in Wikipedia: http://en.wikipedia.org/wiki/Coteaux_...
Appellation created in 2003, annulled in 2005.
That means, there should be some bottles out there ( produced in 2004? ) carrying the fleeting "Chaume Premier Cru des Coteaux du Layon" on their label.
Nice collector's item.
Has anybody seen one of those?