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LONDON, UNITED KINGDOM - NOVEMBER 01: The Princess Of Wales Wearing An Evening Dress Designed By Bruce Oldfield Which Featured As Lot No. 73 At The Auction Of Her Dresses At Christies In New York. Seen Here With Prince Charles And Bruce Oldfield At A Gala Evening At The Grosvenor House Hotel 1st November 1988 (Photo by Tim Graham Photo Library via Getty Images)

LONDON, UNITED KINGDOM - NOVEMBER 01:  The Princess Of Wales Wearing An Evening Dress Designed By Bruce Oldfield Which Featured As Lot No. 73 At The Auction Of Her Dresses At Christies In New York. Seen Here With Prince Charles And Bruce Oldfield At A Gala Evening At The Grosvenor House Hotel 1st November 1988  (Photo by Tim Graham Photo Library via Getty Images)