What one change did the Queen demand of her 'timeless' 1953 coronation gown?

What one change did the late Queen demand of her 'timeless' 1953 coronation gown? In a special episode of the Daily Mail's Palace Confidential, royal editor Rebecca English tours an exhibition which charts Queen Elizabeth's historic reign through clothes, guided by its curator, Caroline de Guitaut.To mark what would have been the monarch's centenary, Queen Elizabeth II : Her Life in Style puts many of her most iconic outfits and accessories on public display for the first time at The King's Gallery, Buckingham Palace .Among the pieces visitors can study up close is the historic gown from the Queen's 1953 coronation, created by royal couturier and longtime collaborator Sir Norman Hartnell.