Serpentine-back, enclosed-arm sofa, Louis XV style (Rococo Revival), has yellow upholstery and a finger-molded exposed frame of rosewood. At top of central arch is a raised crest with high relief carved fruit and leafage, flanked by a volute on each side. Frame flows in a continuous line into arched shoulders that dramatically curve and drop to a low arm rest wrapped with upholstery, exposing a hand grip. The front arm support leads to the short cabriole leg; knee with carved shell. Seat front is serpentine and the exposed frame below has a swell at the bottom and is decorated with a thin raised carved strip. Was likely part of the new suite of furniture ordered by Sophie Plitt for retiring President James Buchanan and his niece, Harriet Lane, in 1861.