The guitar for sale is a No. 10 made by Yukinobu Chai in 1975. It is a masterpiece equivalent to the No. 30 of Chai guitars made after 1990. In the Chai workshop until around 1980, all production was done by hand, from the shaping and cutting of materials to assembly, finishing, and painting, making it a true handmade guitar. After around 1981, mass production began, the number of apprentices increased, and the workshop became more specialized, shifting production to a mass-production system. The guitar for sale is a masterpiece made during the peak of the Chai workshop. This period is characterized by a Santos Hernandez-style headstock and a unique rosette, offering a flavor and tonal resonance not found in mass-produced guitars. Chai guitars made until around 1980 are said to be particularly superior in terms of craftsmanship and tone within the history of Chai guitars. Also, Chai guitars made under the mass-production system from around 1981 are characterized by a Fleta-style headstock, with some exceptions, and the production year can be distinguished by the shape of the headstock. The top is a solid German spruce with tight grain, the sides and back are beautiful solid rosewood with straight grain, the neck is hard mahogany, the fingerboard is jet-black ebony, and the bridge appears to be straight-grained rosewood. The heel joint is German-style, and there are no side braces, but the grain of the top and back seem to match, suggesting it is all solid wood. Furthermore, the acoustic effect of the German spruce and rosewood produces the brilliant, rich, and powerful tone of a Chai guitar from its peak period. Although it is a half-century-old guitar, it is in good condition with no noticeable scratches or dents. Also, new strings for trial playing have been installed, so you can start playing it right away. Unfortunately, Yukinobu Chai passed away in August 2011, and the Chai Guitar Workshop was taken over by his second son, Yukihiro. Handmade guitars made by the first Yukinobu Chai until around 1980 are limited in number and will become increasingly valuable in the future. For all guitar enthusiasts, please consider this increasingly valuable Yukinobu Chai No. 10 1975 vintage guitar. Total length: 100 cm Scale length: 65 cm String height: Approximately 2.6 mm at the 12th fret, 1st string Approximately 3.6 mm, 6th string Nut width: Approximately 5.1 cm Body width: Approximately 9.6 cm Includes a used hard case It will be wrapped in bubble wrap and reinforced with cardboard for packaging. We will deliver it safely.