Vietnamese Painter’s Artworks Set For Auction at Sotheby’sVietNamNet Bridge – Two paintings by the late Vietnamese artist Nguyen Huyen have been sold at a Hong Kong auction for almost US$22,000. Under the hammer: Portrait of an Old Vietnamese Gentlemen by Nguyen Huyen. The artwork went under the hammer yesterday at Sotheby’s Hong Kong auction house. This confirms the large range of influence the Vietnamese art market has around the world, especially in Hong Kong. The decision of auctioning off Huyen’s artworks was made by Sotheby’s after many of his paintings were displayed and sold at an exhibition at Vietnamese Chon’s Auction House.