This is the FB120M, a dreadnought-size acoustic guitar by Maruha, known as the "Magician of Plywood." Based on the stamp under the label, it appears to be from 1971. Aesthetically, it has some flaws, including sticker residue (though the glue has been removed), one missing peg bushing, and a name written on the back of the headstock, as you can see. However, as an instrument, it plays easily and sounds great. The neck is quite thin and slender, almost like a Stratocaster. It's very easy to play. The crisp sound of the strings combined with the reverberant body resonance creates a clear and pleasant sound, which is what you'd expect. The neck frets are fine, and there is a slight top lift (less than 1mm?). It has been cleaned, the tuning pegs have been lubricated, and the strings have been replaced.