Dat So La Lee (Louisa Keyser) was a famous basket weaver of the Washoe Indian tribe in Nevada. She changed and refined the stitching technique of basketry to create a new shape of basket called DEGIKUP. It was a larger basket which curved in towards the top. If you Google the name LOUISA KEYSER, and click on IMAGES, you will see some beautiful examples of this extraordinary artist's work. She died in 1925.