What Robert Gates should do with the old Duo-Art rolls is to offer
them to MMD subscribers who might want the rolls for their own purposes.
He could try to sell them on eBay. I did that with a Duo-Art roll back
in 2006 when I found it in a Duo-Art Steinway where a shop was removing
the reproducing action.  I got some money for the roll and now it is
probably being enjoyed by somebody.

Jeff Alterman