This is a Kohno 20 from 1975 in stunning condition.
I love these guitars, I played a Kohno 20 (1978) for 25 years (including on my first four or five CDs and on tours around Europe, South America and Asia). These instruments have a beauty of sound, playability, eveness around all registers that are hard to match.
This particular instrument is moreover in perfect, almost ”as new” condition with only one ding on the back of the neck and some very, very light (almost invisible) playing wear around the sound hole.
All in all: I doubt you can find a better guitar at this price.
Back and sides: CSA Rosewood
Price: 2500 Euro