Yang Wencong (1596-1646), Landscape, 1634. Estimate  10,000 — 15,000 USD. Photo Sotheby's.

signed Wencong, dated jiaxu (1634), Spring, with one seal of the artist, cong; ink on gold paper, fan leaf; 23.5 by 51.2 cm. 9 1/8  by 20 in.

Bibliography: An Intimate World, New York: China 2000 Fine Art, 2000 October, pl. 1

Note: According to An Intimate World, this lot was previously a Zhang Daqian (Chang Dai-chien) collection.

Sotheby's. Fine Classical Chinese Paintings & Calligraphy New York, 17 sept. 2015