This one minute audio recording is by Landon Brady Saunders and is titled CBS 500. The date of creation is estimated.
Audio recording of CBS 500 by Landon Brady Saunders, Landon Brady Saunders Papers, 1969-2022. Center for Restoration Studies MS #575. Abilene Christian University Special Collections and Archives, Brown Library. Abilene Christian University, Abilene, TX.