Edgar Degas (1834-1917) At the Louvre: painting (Mary Cassatt). Circa 1876. Etching, drypoint and aquatint. 125x303mm. Delteil 29; Reed-Shapiro 52. Very fine proof on heavy cream vellum, from the print run of the crossed-out copper for Ambroise Vollard (1918). Fine band of oxidation at foot of folio. Full margins.