Princess Diana’s Dress

S1 E3: A grand silver wine cistern is the headline lot in a sale of exquisite ‘treasures’ in London. Elsewhere, Princess Diana’s black dress, discovered by its designer in a trash bag, gets the bidders excited. American radios from the 1930s spark interest from collectors and, in Paris, the art collection of Ambroise Vollard is sent to auction 70 years after it was locked in a bank vault and forgotten.