⭕ An extremely rare and beautiful sounding 30 key Wheatstone Linota serial number 27xxx (built 1916) in the keys of F/C, a tone lower than G/D and described in the Wheatstone ledgers as a tenor concertina. It is 7 7/8 across the flats, a little larger than a typical C/G. Rosewood ends and original seven fold black bellows. Refurbished with new pads and valves. The concertina is in tune at its original Philharmonic pitch of A=452.5Hz. It could be re-pitched to modern concert pitch of A=440Hz. I have an excellent reputation for my concertina restoration work at The Box Place.