I'm playing an amzing 1972 Yamaha FG-200 Acoustic guitar (Tan label). It's actually all plywood, even the top, and it still sounds like a million bucks! These can still be had relatively cheap, so if see one, buy it!! Elliot Smith did much of his great work on a Yamaha FG-180.
Read more about vintage Yamaha FG guitars on this great web site:
https://yamahavintagefg.com/yamaha-fg-serial-numbers-interior-markings-and-labels-1966-to-1981/