This is from the Plains Native Americans, such as the Crow, Blackfeet, Sioux, or Kayenta. The glass beads are trade items, meaning they were not Native American to begin with. They were brought here by people from overseas. The rock has a goat or deer hide on it, with a rough stitching that was done in thread, rather than sinew. It is not a coup stick, but a club. It seems to be more ceremonial due to the amount of beading that it has because it is not practical to fight with that many beads. This can be dated to the late 1800's (1880s and 1890s).