Yamaha Dynamic Guitar No. 4 - made in Japan in the late '50s (1958 is an estimate). Check the demo video I recorded playing the guitar: https://youtu.be/K_eBT6vCbQU The guitar is playable and comfortable with 0.10 steel strings. It has been played and used a lot over the years and it shows. It has that super cool, worn vintage look and a sound to match it! Please check the photos and the videos carefully, they are the best way to understand the guitar's condition & sound. This guitar is almost 70 years old, so adjust your expectations accordingly. It has scratches, blemishes and imperfections. It will feel different compared to a new instrument. It is playable but it has not been professionally setup, so there may be things that can be done to improve its playability. I'd suggest it to people who have some experience with vintage guitars and are willing to make adjustments down the line, or who can embrace the imperfections in exchange for a special sound and vibe.