I am interested in Bursen (Arburo) rolls and Artizan 61-key rolls.  I
have many rolls of various types to trade, as well as thousands of
original and repro parts for parts for most types of US mechanical
music machines, wood drums, roll frames, pipes, xylos, motors, etc.

Alan Erb
http://mechanicalmusicbox.com 
(the site will be upgraded to include large quantities of parts and
 instruments when I figure out how to do that)