Manfred Schwartz (American, b. Poland, 1909-1970), "Frog at Etretat" in Green, Lithograph on Paper, mid 20th century, numbered edition "36/50" lower left, signed in pencil lower right, unframed. Image: 13" H x 24.75" W; sheet: 20.5" H x 29.75" W. Provenance: From a 35 East 75th Street Estate.