I actually ended up with two little Pearl River Harmoniums (Harmonia?) as I bought one for a friend, who eventually sold it back to me. As he was a furniture maker, he has stripped off the rather ugly varnish, re-finished the wood, did some decorative carving on the edge of the lid, and generally made it very pretty! Ralphie, I've heared about your efforts to fit your knees underneath it - I think Doug still grins at the memory.
As Bonnie say, it was not originally designed to fold up, but does so courtesy of Packie Byrne's cunning plan. Mind you, it also had a penchant for wandering about the floor while being played. I tried various methods to prevent this - the most entertaining was when a member of the audience came and lay on the floor in front of it!!
The least successful was at a concert at Chipp3enha, (I think) when I taped it down with gaffer tape. Unfortunately, in the middle of a song the tape at one end came unstuck, resulting in the poor beast attempting to go round in a circle while I tried my best to follow. I can't remember what I was singing at the time, but I think we all ended up in mild hysterics.
At least I can hang on to concertina....
Saro