Yamaha electric guitar models

The Yamaha Corporation (ヤマハ株式会社, Yamaha Kabushiki Gaisha) is a multinational corporation and conglomerate based in Japan with a wide range of products and services, predominantly musical instruments, motorcycles, power sports equipment and electronics. == Yamaha SG Series first era (1966–1971) == Yamaha began using the "SG" (solid guitar) prefix for their solid bodied guitars when they introduced their first solid-body model in 1966 and continued using the SG prefix up until 1981.

Source: Wikipedia — Yamaha electric guitar models (CC BY-SA 4.0)