I forget. I think German. Push notes and pull notes are different. As I recall, Anglo is same note, push or pull. This one was made in Italy.
So it's "blow suck blow suck suck suck blow" ?....or opposite?
No foul intended to Ric on his sea-going concertina of course, but I believe it was Willie Nelson who once remarked that in music a "perfect pitch was an accordian landing on top of a banjo... in the trash".