Sonia Delaunay (1885-1979) Île Saint-Louis. 1906. Etching. 235x138mm. Very fine proof on cream vellum, justified in pencil "E.A." and signed in pencil (late signature). Full margins. This is the artist's first etching. In a donation made by the artist in 1977, the Bibliothèque nationale de France holds several proofs of this subject, printed in different colors. A total of 181 proofs are known to have been printed.