NEW YORK – A monumental painting by Georgia O’Keeffe that can be viewed horizontally or vertically sold for $12.9 million at a New York City auction.

“Lake George Reflection,” created in 1921-1922, was offered at Christie’s on Thursday. Measuring 5-feet by 3-feet, it was inspired by O’Keeffe’s visits to Alfred Stieglitz’s family compound on the upstate New York lake. She married the celebrated photographer in 1924.