James Lewis of Derbyshire, UK, based auctioneers and valuers Bamfords explains what "provenance" means in the world of antiques - and why it's so important. To illustrate his point, James uses four lots in a forthcoming sale at Bamfords - a silver dish given by Elizabeth Taylor and Richard Burton as a Christmas present, a writing desk thought to have been owned by Queen Victoria, two stools from a Royal coronation and a marble statue from an historic house.
