Signed lower left Yu in Chinese in a square and SANYU in English

EXHIBITED:
A Legacy of Centuries – Exhibition of Sketches by Chinese Masters, Dimensions Art Center, Taipei, June 18 – July 9, 2005

ILLUSTRATED:
A Legacy of Centuries-Exhibition of Sketches by Chinese Masters, Dimensions Art Center, Taipei, 2005, color illustrated, p. 27
Rita Wong, Catalogue Raisonné Drawings And Watercolors, The Li-Ching Cultural and Educational Foundation, Taipei, 2014, color illustrated, p. 108, included in the CD, plate no. D2384

The painting is to be sold with a certificate of authenticity issued by Dimensions Art Center, Taipei.