Here a Yamaha SX-800A in walnut brown. The SX models were in the day also known as the “Devilhead Guitars” and along with the SG were developed after the earlier SG-90/175 that were made 1974-75. The SX was short lived and last models were issued in 1976/8. The A models were kitted out with hum-buckers and the B models had 3 single coils pickups. The construction materials varied between the A and B versions. The A version was made out of Maple and Mahogany for the body and the set neck was built from mahogany with an ebony board. Notable players were Tommy Bolin and Rory Gallagher.