For those who love to add historical reference to their shopping experience - PRADA is auctioning for charity ten unique prototype pieces, from the house's notorious Flower Faerie spring/summer 2008 collection

The prototypes will be auctioned each Tuesday on a weekly basis. Those going on-line will have seven days to get their favorite item: three trouser prototypes will be available from April 15 at midday, one bag and two pairs of boots from April 22, the third week offering four skirts.

The chance of owning a small piece of fashion history has even greater meaning because proceeds from the auction will go to the San Raffaele Foundation, one of the most important Italian institutions concerned with medical research, clinical work and training.