What is the title of Georgia O'Keeffe's 1931 painting of a large black steer skull?

Georgia O'Keeffe's 1931 painting of a large black steer skull is titled Cow's Skull: Red, White, and Blue.

The painting places a cow skull against a stark background with broad red, white, and blue areas. O'Keeffe made it after encountering animal bones in the New Mexico landscape, where she collected and studied them as artistic subjects.

The title refers to the colors and evokes the American flag, although the work is not a conventional patriotic scene. O'Keeffe often isolated bones from their original surroundings, turning them into monumental, carefully balanced forms.

The painting is distinct from her related works featuring ram skulls and deer skulls. Those titles can be easy to confuse because skull imagery recurs throughout her New Mexico paintings.