Alfred Stieglitz's New York gallery that first showed Georgia O'Keeffe's art was called 291. The name came from its address at 291 Fifth Avenue in Manhattan.
Stieglitz founded the gallery in 1905 with Edward Steichen under the name Little Galleries of the Photo-Secession. It was later commonly known as 291, and it became an influential venue for photography and European and American modern art.
O'Keeffe's work appeared there in 1916 after artist and educator Anita Pollitzer brought Stieglitz some of O'Keeffe's drawings. The gallery's name can be confused with Stieglitz's later venues, The Intimate Gallery and An American Place, but 291 was the earlier space associated with her breakthrough.