Gerry Bay asked if a Duo-Art rollography had been published - yes, it
has. A beautifully produced hard-back book entitled "Duo-Art" was
written by Charles Davis Smith in 1987 listing all known Duo-Art rolls
and giving a wealth of background information.

The publisher is:

    The Player Shop, 62
    South Myrtle Avenue
    Monrovia, CA 91016
    USA

So far as I know the book is still currently available.

John Farrell
stridepiano@email.msn.com