The image describes the H.M.S. ""Rattler"" (left) capturing the slaver ""Andorinha"" (right). The Illustrated London News, the source of this image, reported that the vessel was in charge of a Brazilian commander and that she was often employed in the slave trade from the Bight of Benin. The slaver was captured off Lagos, at present-day Nigeria, in August, 1849. The image is reproduced courtesy of the Manuscript, Archives and Rare Book Library, Emory University.