"Jean Emile Laboureur Old Chalcography From The Louvre The Entomologist Butterfly "
Old chalcography from the Louvre, 20th century "The Entomologist" signed Jean Emile Laboureur, dry stamp under the plate. Sunstaining on the margins should be noted, the whole in good condition, see photos above. From a large collection of engravings and lithographs of The whole in good condition see photos. 
Le Magazine de PROANTIC
TRÉSORS Magazine
Rivista Artiquariato