Here another Rare Yamaha SX-800B – “The Devils Head” , 1976, in translucent red finish, 1st issue. A Japanese friend of mine told me that these guitars are quite rare, even in Japan. Initial production started alongside the Yamaha SG range; The Yamaha SX 800B sports 3 independent single coil, high output pick ups and its tonal variety and range is immense, varying from soulful and clear, to a powerful growl.
There are some indications an SX model was in use by Tommy Bolin with Deep Purple and earlier by Rory Gallagher… For photo’s see: http://www.rorygallagher.com/#/archives/guitars/sx800b. Very Rare guitar, even in Japan.