Lithograph Vintage French birds

This is a set of 3 beautiful old lithographs on paper depicting birds. the frames are made of wood with an original brass frame; the prints are protected under glass. Vintage french framed lithograph duck wall art by murr birds art of the 1950s ornithology art print. A species of waterfowl from 1958 and 1959 works by murr entitled: 1. "podiceps cristatus (l.) murr 1958" 2. "podiceps ruficollis (pallas) murr 1959". 3. The last one depicts a parrot bird on which is written"pteroglossus sanguineous (john gould 1855) w triginner. Good condition. Some traces of time and / or speckled spots on the paper, which adds to the charm of these beautiful vintage prints (see photos) Dimensions in cm: 26 high X 17 wide.