I want to thank you guys for all the info you sent me on the Hupfeld.
Everything (all that I can see, at least) is as exactly as you
described.  All these replies were coming from England.  The piano
was purchased there when the owners lived there; when they came back
here, the piano and 12 boxes were shipped with them.

I had seen a "rubber-less" player before in a red Welte push-up --
it looks like miniature furnace duct work.  I have forwarded your posts
to my friend, I'm sure he'll be surprised!

Jay Merrill