Arthur Henri Lefort des Ylouses (1846-1912) Gaston Lefort des Ylouses, son of the artist, 7 years old. 1892. Etching. 145 x 204. Very nice proof printed in black on ivory vellum. Light scattered foxing. Traces of glue with small tears in the corners of the sheet. Tiny epidermis on the surface (on the face). All margins. Gaston Lefort des Ylouses was born on April 23, 1885 in Neuilly and died on December 16, 1971 in Dinan, at the age of 86. He was an engineer at the École Centrale de Paris.