**FILE PHOTO** Lady Diana Spencer, later to become Diana, Princess of Wales, sets the flashbulbs popping as she wears a revealing Emanuel black dress attending her first official engagement with Prince Charles at a fundraising concert at the Goldsmiths Hall in London in March 1981.
Designers Elizabeth and David Emanuel are holding an auction of dresses worn by the late Princess Diana. The dresses are to go up for auction on June 8, 2010 in London, at specialist vintage fashion auctioneers Kerry Taylor Auctions.