The text below is from Michael Siou's web site,
http://members.ebay.com/ws/eBayISAPI.dll?ViewUserPage&userid=michaelsiou 

Merry Christmas
Fritz Gellerman

 - - -

Ray Siou's Duo-Art Piano Rolls

In the past, I have also helped my uncle, Ray Siou, sell off his
collection of original Duo-Art piano rolls.  Like me, he had some
space constraints, and he wanted to accumulate more things, so he
needed to get rid of his original rolls.  These rolls were used to
create program rolls and recuts, and have been very rarely played.
That's why they're in great shape, with only minimal creases and
tears on the paper.  Winners of my piano roll auctions were treated
to fantastic safe packaging (with Styrofoam shipping 'peanuts' and
sturdy boxes), sent via UPS Insured.  By consolidating auction
victories, people helped save some more money.  Considering that
Duo-Art piano rolls were also at a low, people were saving more money
because there was less interest.  So this was a win-win situation.
Who knows -- maybe I'll have more to offer.  If I do, keep an eye out
for them.  Don't miss out on it, because once they're gone, well,
I surely won't have more to offer after these.  So don't miss out on
not owning original Duo-Art piano rolls, but on owning rolls previously
owned by Ray Siou, who is one of the more famous piano roll producers
(you can read more about him in the MMD Archives).