The 13th Floor Elevators signed contract autographed by Roky Erickson, Tommy Hall, Stacy Sutherland, John Ike Walton, and Benny Thurman. 9x12 inches The 13th Floor Elevators was an American rock band from Austin, Texas, United States, formed by guitarist and vocalist Roky Erickson, electric jug player Tommy Hall, and guitarist Stacy Sutherland