Stagi 30 button English Concertina

Description

Stagi 30 button English Concertina.
Used but in good shape with minor issues.
On the D, the volume is lower/slightly wheezy when you push. I attempted to open it to see if the issue was dust and one of the screws completely died. It was so horribly stripped (and they are terrible screws) that I did not replace it. The finish is marred in that area. That screw is missing.
The bellows are good, the cosmetic issues (see pictures) are from use, except for the screw.
It comes with a soft case and printed note key. Will be packed with care. Cat friendly non-smoking household.
I do have three books listed separately.
Very horrible playing sound sample here:
https://youtu.be/emlIH3KQ0dk