Lot 1107, Yuan Yao (Active Mid-18th Century), Landscapes. Estimate 600,000 — 800,000 USD. Photo Sotheby's

(1) with two seals of the artist, yuan yao, zhao dao
(2) with two seals of the artist, yuan yao, zhao dao
(3) with two seals of the artist, yuan yao, zhao dao
(4) signed Hanshang Yuan Yao, dated jimao (1759), with two seals of the artist, yuan yao, zhao dao
ink and color on silk, set of four hanging scrolls
166 by 48 cm. 65 3/8  by 18 7/8  in. (4) 

Sotheby's. Fine Classical Chinese Paintings & Calligraphy, New York, 17 mars 2016, 10:00 AM