Legendary Yamaha SA-50, the frontier of Japan-made semi hollow debuted in 1967, the same year that the highly sought-after SA-30 was released. Among Yamaha's semi hollow line-up, SA-50 followed SA-5 (1966) and SA-30 (Jun 1967), according to its release in Jul 1967. In their brochure Yamaha proudly advertised Yamaha SA series featured so-called 'adjustable neck', which I believe referred to adjustable truss rod. Till then the truss rod had been made from wood, thus not adjustable. Replacing this with steel-based one was thought of as break-through technology. These first generations of Yamaha semi hollows continued with newer models such as SA-15 (May 1968) and SA-20 (Oct 1968), followed by half decade of gap before they gave up hockey stick shaped headstock and introduced more modern, symmetric design (trying not copy Gibson's bookmark headstock but getting closer..)

Please note this guitar dates in 1967. 46 years passed and can you believe she is as fresh as semi-brand new. This is the best ever vintage among Yamaha SA guitars I ever have. I see nuts holes from the detached pickguard and frets showing black smears at 2 spots (photo attached) , other than this the maintenance is very good. A brand new gig bag comes along.