Matsuoka M10 (1989) Custom Clasical Guitar -A Rare Find with Mysterious Origins This Matsuoka M10 is incredibly rare, as the M10 model was discontinued in the late 1970s, yet the manufacturing date shows that it was made in 1989. Intriguingly, while the label states its an M10, its features closely resemble those of higher grade models, such as the M70 or even the M100. This raises the possibility of a misprinted label or a unique production anomaly, making it a fascinating piece for collectors