 A similar guarnello was painted by Sandro Botticelli in his "Portrait of Smeralda Brandini" (c. 1470/1475), depicting a pregnant woman on display in the Victoria and Albert Museum in London.Furthermore, this reflectography revealed that "Mona Lisa"'s hair is not loosely hanging down, but seems attached at the back of the head to a bonnet or pinned back into a chignon and covered with a veil, bordered with a sombre rolled hem.In the 16th century, hair hanging loosely down on the shoulders was the customary style of unmarried young women or prostitutes.