This is a good example of a vintage Latchenal Concertina. I brought this 10 years ago from Barlycorn Conertinas and drove to Stoke to fetch it. It had been restored at that point. It has two extra buttons one on left side D drone both ways very useful and one on the right the high A .These would have been bird squeaks originaly probably.It has only been played  at home and is in good fully playable condition.Its in GD tuned to pitch Steel reeds.Postage is Royal mail special .Please feel free to ask any questions