Hohner Student II piano accordion. Made in Germany. This classic little accordion is perfect for folk sessions. It has 26 keys and twelve basses, which in practice means bass fundamental and chords in Bb,F,C,G,D,A. Major chords are normal for the Student II, but if you wish I can mute the major third note for each chord, so they would work for major and minor tunes.
As you can hear from the video it has a wonderful bright, direct sound. Serviced and tuned. Comes with its original hard case.