Artist: John GOULD (1804-1881). Title/Subject: Harpyopsis Novae-Guineae, (Harpy Eagle), used for both the cover illustration of Peyton Skipworth's book on Great Bird Illustrators and their art 1830-1930 and John Gould's final work Birds of New Guinea and the Adjacent Papuan Islands, including many new species recently discovered in Australia. Medium: lithograph. Size image: 21 x 14 in. Size frame: 31 x 25 in. Created: 1830-1888. Condition: toning to paper.