https://www.christies.com/en/lot/lot-6294236
WU CHANGSHUO (1844-1927), Ink Lotus | Christie's
wu changshuo18441927inklotus
https://www.sothebys.com/en/auctions/ecatalogue/2015/fine-chinese-paintings-calligraphy-n09480/lot.1218.html
(#1218) Wu Changshuo 1844-1927
wu changshuo121818441927