Sun Kehong (1533-1611), Rocks. Photo: Sotheby's.

signed Xueju, with two seals of the artist, xue ju shi, fei yun feng; ink and color on paper, handscroll: 28.6 by 276.2 cm. 11 1/4  by 108 3/4  in. Estimation 40,000 -- 60,000 USD

Litterature: This Single Feather of Auspicious Light: Old Chinese Painting and Calligraphy. Vol. 1, London: Sydney L. Moss. Ltd., 2010, #13

Sotheby's. Fine Classical Chinese Paintings & Calligraphy. New York | 19 sept. 2013 - http://www.sothebys.com