1Portfolios%20%3D%20%223452%22%20and%20Century%20%3D%20%22Ca.%201870-80%22John Henry TwachtmanTwachtman, John HenryArtistAmerican18531902MalePaintingDunes Back of Coney Island<i>Dunes Back of Coney Island</i>13 7/8 x 19 7/8 in. (35.24 x 50.48 cm)...Oil on canvasca. 1878-198018781980PaintingFrye Art Museumxxx1956.010