Decorative depictions of birds

Lot 1828 limit € 20

2 x colored heliogravures after Denis Diderot's copper engravings from "Histoire Naturelle" around 1780, each with views of birds in a landscape sitting on the ground or in branches, colorful design of the rich biodiversity, 1 x extensively inscribed in a legend at the lower edge, each at the bottom right Plates numbered "AB.s. PV12" and "AB.sPV 2", signs of age (including creases, browned), sheet approx. 57 x 26.5 cm and 27.5 x 63 cm, respectively