Yamaha GC-5 Grand Concert guitar 1979 - Sound demo by Neil Ta - YouTube
Yamaha GC5 1980, Hideyuki Ezaki | Reverb
MADE BY TOSHIHIRO KATO - HER MAJESTY YAMAHA GC5 1970 - CLASSICAL CONCERT GUITAR | eBay
Yamaha Music Europe - 1967 – The first Yamaha Classical Guitar Series have been built. It all started with the GC3, GC5, GC7 and GC10, which became the bases for the development
MADE IN 1981 GREAT YAMAHA GC5 CLASSICAL CONCERT GUITAR IN EXCELLENT CONDITION | Reverb
MADE BY TOSHIHIRO KATO - HER MAJESTY YAMAHA GC5 1970 - CLASSICAL CONCERT GUITAR | eBay