There are at least two more people who are producing Duo Art rolls.
Rich Groman in Bethlehem, PA of Keystone Music Rolls
    http://www.keystonemusicroll.com/
produces rolls from the original Aeolean equipment and masters.  He
usually has a fair amount of titles in stock.  H. Douglas Henderson in
Wiscassett, ME of Artcraft Music Rolls
    http://bradford.wiscasset.net/artcraft/
produces his own arrangements of mostly ragtime tunes.  He currently
has a rather large inventory available.  He is still hand punching new
arrangements as fast as his fingers can work.  WARNING!  You can't sit
still while listening to his piano rolls.  They are definitely NOT for
those who want to take a nap while listening to the piano.

Vincent Morgan