Porzana pusilla -- Baillon's Crake. Alternate name on piece: Porzana pygmaea and botanical. Primarily color sketch of plant (Nuphar lutaea), with three birds incorporated. Drawing has been folded, stamped, and addressed to H.C. Richter Esq, 4 Alma Terrace, Allen Street, Kensington, [London,] W. Artist's name(s): Gould, John; Richter, Henry Constantine.