A tenor treble Wheatstone Aeola No 29752.
It has metal ends and buttons, steel reeds and 6 fold bellows.
It has been restored with new valves , pads, straps, a bellows edge rebind and tuned to concert pitch.
It plays well as you would expect one of these to do and is one of the top concertinas you can get.
The tenor-treble has the extra 8 notes below a treble-going down to C on the right hand side. This makes it a multi-purpose instrument which will play all your nornal tunes but also wanders into baritone territory so that it has some great lower chords on the extra notes.
This is just one of about eleven tenor-treble Aeolas on the books at present-so if you are looking for one there is nowhere in the world where you will find this sort of choice.