Ensemble by Jean Dessès, Paris, 1951, at the Victoria and Albert Museum, worn by H.R.H. Princess Margaret to the Ascot in 1953 (see black-and-white photo, via romanbenedikhanson on Flickr). Deep sea-blue, strapless dress in silk with curved pleats suggesting a stylized rendition of receding waves. Matching jacket in blue silk organza with white pique collar and cuffs on the elbow length sleeves, and buttoning up the front. Blue velvet ribbon around the waist.