LONDON (AFP) - The snob value of the truffle, the rare, delicate-tasting fungi so beloved of chefs, has hit new heights in London with a single specimen selling for 110,000 dollars. The world record price was paid at auction by an unnamed buyer in Hong Kong for a rare white Alba truffle, a sort found only in Piedmont, Italy, for two months of the year. Weighing in at 1.2 kilogrammes (2.6 pounds) -- it was described by auctioneers Christies as "the size of a small handbag" -- the truffle was among several sold at an auction held in the posh...