1970 Elk Super Fuzz Sustainar Demo,About Wata's ELK Big Muff Sustainar and Hizumitas — EarthQuaker Devices,ELK SUPER FUZZ SUSTAINAR Limited(Proto),ELK SUPER FUZZ SUSTAINAR Limited(Proto),Vintage 70's Elk Super Fuzz Big Muff Mag Sustainar Set - Early Electro Harmonix Triangle Muff Copies