Four bottles of 1875 Armagnac Vieux, covered in a black fungus that looked like matted cat fur, were unearthed from storage last week. Paris' landmark Tour d'Argent restaurant, established in 1582, is cleaning out its 450,000-bottle winecellar — one of the best in the world — and putting 18,000 bottles up for auction in December, an event that has captured the imagination of French wine-lovers.