Lot 4 lithograph birds series of hummingbirds by john gould english ornithologist, imp walter 1950

1 set of 4 large color lithographs from the hummingbirds series, birds of paradise, vintage engravings from the 19450s based on paintings by j. Gould, engraved by w. Hart, printed in great britain, format 29 X 41cm: - dorifera veraguensis (3 hummingbirds porte lance de jeanne, green, red top of the head, fan-shaped tail, straight beak), printer walter - spathura solstitlalis (3 hummingbirds including 2 green boot racket tail), imp. Walter - leucippus fallax (2 green and orange deceiving hummingbirds), printers hullmandel & walton - urochroa bougieri (2 white-tailed bouguer hummingbirds) imp. Hullmandel & walton. Unframed, 250g rolled packaged lot. Possibility to sale individually 50€ (+ shipping).