Signed lower left Yu in Chinese and SANYU in French

Ancient collection of Henri-Pierre Roché, Paris
Spring Auction 2005, Christie's Hong Kong, lot 0316
Ravenel Spring Auction 2013, Taipei, June 2, 2013, lot 698
Acquired from the above by the present owner

ILLUSTRATED:
Rita Wong, Sanyu – Index of Drawings (L'inventaire des dessins ),
The Li-Ching Culture and Education Foundation, Taipei, February 2015, No. D0265, p. 27 (USB flash drive)