Executed in 1916, (estimate: $2,500,000-3,500,000), Blue I represents her investigation of pure abstraction and acts as one of the earliest and most original abstract images in the history of American art. Blue I is the current [2016] auction record for a watercolor by O’Keeffe, having previously sold for $3,008,000 at Christie’s New York. [http://arthistorynewsreport.blogspot.nl/2016/05/christies-american-art-sale-may-19.html]