Just a note to say that I am now retired and can devote all my energies
to the project in which I am involved.  The RPRF site has returned
(from repair and realignment) and will provide any and all with the
detail of the roll production (classical) of the various companies.

Note that Ampico and Duo-Art are complete in their two "classical"
series, which many of you are aware, at the beginning involved pop,
show, novelty etc.  For the convenience of owners of these pianos then,
I furnish a detailed numerical, as you will observe from accessing
http://www.rprf.org/

Albert M. Petrak, Founder
The Reproducing Piano Roll Foundation

PS: An awe-inspiring sight, a panoramic view of the world, is at
http://antwrp.gsfc.nasa.gov/apod/image/0011/earthlights_dmsp_big.jpg