The Guns of History Gun Gallery in Mitchell is the home of documented weapons from Custer’s 7th Calvary and from Sioux and Cheyenne warriors. We specialize in the history of firearms from the Indian Wars of the Upper Plains, 1860-1890. There are firearms related to Crazy Horse, Sitting Bull, Gall, Two Moons, and George A. Custer from battles such as Rosebud, Little Bighorn and Wounded Knee. We are located three blocks west of the Corn Palace and our hours are on our Facebook page and website.