Sadly, the "ornate needlepoint wooden stool" may well out-do the harmonium in the antique value stakes. I have paid between £40 to £80 ($60 - $120?) for various harmoniums over the years. All needed some work to make them "playable", but condition and playability don't seem to make much difference to the asking price. Any that I have seen where the price was way beyond that remained for sale for a long time. The ones I have are probably not worth much more now than I paid for them, but they have been an interesting study. You can pay quite a lot more for a new model and still find it needs considerable tinkering before being acceptable.

Ross