LONDON - JANUARY 10: (EMBARGOED TILL 0001 TUESDAY JANUARY 11, 2005) Writer and historian Helen Rappaport, holds a portrait of Mary Seacole by obscure london artist Albert Challen dated 1869, in the National Portrait Gallery on January 10, 2005 in London, England. The lost painting of the famous black nurse whose work in the Crimea is often overshadowed by her contemporary Florence Nightingale, is the only known painting and has been lent to the gallery to go on display from today. (Photo by Bruno Vincent/Getty Images)
