What was the name of the New York gallery Alfred Stieglitz operated from 1925 to 1929, where O'Keeffe exhibited?

The New York gallery Alfred Stieglitz operated from 1925 to 1929 was The Intimate Gallery.

Stieglitz opened The Intimate Gallery at 46 West 57th Street in Manhattan in 1925. It followed his earlier gallery, 291, and provided a setting for exhibitions of modern American art, including work by Georgia O'Keeffe. The gallery closed in 1929.

Afterward, Stieglitz opened An American Place, which operated from 1929 until his death in 1946. Because the galleries succeeded one another and were all tied to Stieglitz, their names are frequently mixed up in short biographies.

O'Keeffe's professional story is therefore linked to several Stieglitz galleries rather than just one. The first public display of her drawings occurred at 291, while The Intimate Gallery belongs to the later 1925–1929 phase of their New York art-world activity.