An East-German anglo concertina, 20 keys in D/G. These were made in large numbers in the mid twentieth century under various labels, most commonly ‘Scholer’. They are not generally of very high quality, but this one is actually fairly playable. It is basically in tune, and I could retune the worst offending notes for an additional fee. I have replaced the handstraps with some simple leather ones in a similar style to the originals. Could be an inexpensive way of trying out the anglo concertina.