Coeligena prunellei -- Black Inca. Alternate name on piece: Coeligina prunelli Layout drawing, birds quite well finished, color added; 6 notes on color, 4 on form; [Curtis] XI-4831; large letter "F"; Sotheran's price at foot, "15/-." Title in pencil by Sotheran, bookseller. Artist's name(s): Gould, John; Richter, Henry Constantine.