Portrait of singers Millie and Christine McKoy, the Carolina Twins. Printed on front: "Carolina Twins, Millie and Christina." Printed on back: "J.W. Hurn, no. 1319 Chestnut Street, Philadelphia. Entered according to Act of Congress, in the year 1866, by Mrs. Joseph P. Smith , in the Cleak's [sic] Office of the U.S. District Court of Maryland."
