The gallery known as 291 first exhibited Georgia O'Keeffe's work.
291 was Alfred Stieglitz’s New York gallery at 291 Fifth Avenue. It began as the Little Galleries of the Photo-Secession and became an important venue for photography and European and American modern art.
Stieglitz presented O'Keeffe’s work there in 1916. The exhibition helped bring her abstract drawings to the attention of New York’s art world and began a professional relationship that lasted for decades.
The name 291 refers to the gallery’s street address, not to an exhibition number or an art movement. The gallery closed in 1917, after which Stieglitz continued showing O'Keeffe’s work at other galleries, including the Anderson Galleries and An American Place.