Hello! I'm making this post about Mike Harding's bass concertina because I have recently bought it from him! some of you will know that I've been trying to buy a bass concertina for a while. This is also my first concertina that's not a hybrid.
Its Wheatstone 23578, so made around 1904. its a 29 button G-bass with the low G# tuned down to F natural. Here's a video, I hold up the ends at the end so you can get a better view. here's me playing a tune I wrote.