An incredibly generous friend recently gifted me with a lovely 38 button C. Jeffries Maker Bb/F concertina, which I am enjoying immensely. The 3rd row is a little eccentric, and not what I'm used to playing- looks like there were a few reeds swapped around by a previous owner, and there was one reed missing. I've swapped things back to where I think they belong, but I'd like to get my hands on a spare reed- either a B4 ( ideally in old high pitch) or C5- so I can make it compatible with my Carroll and Kensington. The box is in old pitch, about 38 cents sharp, so I can tune up or down as required. I've put a brass Lachenal reed in the hole for now, but that just ain't right!