This concertina has been soldType : English
Make : Lachenal
Model : 48 Key Treble
Price : £575
A nice Lachenal tutor model no 53437-which would probably be somewhere after 1910.
It has mahogany ends, bone buttons, brass reeds and 4 fold bellows.
It has been restored with new pads, valves , straps and tuned to concert pitch.
You will see a lot of these around but I doubt if they would be as tidy as this one-and they are often on Ebay at £200-300-but it can cost way more than that to get them restored and tuned-even if they have no other issues than the norm-and if they need bellows or a lot of work they can cost the price of this one just in restoration costs.
I can't say that a concertina at this price is fast and loud-but it is quite a good example and is not slow or quiet.
A great starter instrument. You would need to upgrade if you became a decent player -or just wanted a better concertina when you were convinced that you would make a player. It could come back at the same price in an upgrade situation. (this only applies in the U.K -and Europe-until we see what Brexit brings).