Bruce,
I have a 1830 Demian in very nice condition, as well as an 1830's Bosson (A French patent infringer who may have have promulgated the first accordion lawsuit in history) in "fragmented" condition. The case on Bosson has separated at the glue joints and provides an interesting view inside, revealing construction details. I'll need to dig them out and photograph, but when I can get around to it, I'll start a thread featuring them "Birth of the Accordion" (may be a month or so).
BTW, I had trouble streaming Accordion Uprising in the past (mostly past shows). Has that been fixed?