David, Sorry for not answering the felt question. In my experience, a lot of the "cloth" that was used on these instruments was, exactly that, cloth. My "collector/restorer" has gone so far as to have a friend, visiting England take a sample and scour the textile outlets of London, to find a close match to the material that was used on the damper system of his 1805 Clementi. What it turned out to be was a very loose weave fabric, wool. It has been used and is acceptable for his piano. I might suggest the same approach. I'm sure there is a whole new world, out there, when it comes to textiles! Best Regards, Joe Garrett, RPT, (Oregon)
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