Updated on 25 May 2018: NA Qing'an (XIX-XX) is an artist born in XIX The oldest auction result ever registered on the website for an artwork by this artist is a drawing-watercolor sold in 2015, at Sotheby's, and the most recent auction result is a drawing-watercolor sold in 2015. Artprice.com's price levels for this artist are based on 1 auction results. Especially: drawing-watercolor.