Used By:Vicki Leon Added On: 01/20/2015 at 1:12 AM EST Image Caption: Cow's Skull with Calico Roses, 1931. Col. the Art institute of Chicago. Owner Name / Source: Georgia O'Keeffe. Public domain URL of Owners Page:http://www.artic.edu/aic/collections/exhibitions/Ryerson/resource/1474 Image Source: ImagesAttr License:License Unknown Notes: this is in the public domain according to http://www.artic.edu/aic/collections/exhibitions/Ryerson/resource/1474