Art Review ‘Edwardian Opulence’ at the Yale Center for British Art ← Related Article Visit The Boston Globe Share on Twitter Share on Facebook Comment on this Scroll to top of page National Portrait Gallery London John Singer Sargent's portrait of Sir Frank Swettenham. 1904. Oil on canvas. Collection Cartier Two articulated fern-spray brooches, 1903, diamonds and platinum. The Rothschild Collection (Rothschild Family Trust) A fan of ostrich feathers, tortoise shell, silver and diamonds. Rothchild Archives A photograph of King Edward VII, 1909. Rothchild Archives Lady Helen Vincent in 1910. ashion Museum, Bath A House of Worth gown of silk with silver and gold thread and bullion work.