Rolls for Tournaphone can be bought from Ed Schmidt in USA or Kevin
McElhone in England.  Both have web sites and are part of the "Crank
Organ Ring" in the Internet.  You did not say where your customer is.

The Dulciphone you mention is only 14 notes, against 25 notes for the
Tournaphone.

Be careful about spool drive wheel sizes.  The American market
Tournaphones used a drive wheel of about 1 inch diameter, the machines
exported to UK used about 2.5" diameter drive wheels, so you need to
make this clear.

More useful information like this (with exact measurements; the above
are estimates from memory) will be in a book on Organettes to be
published next year.  More details of this in due course.

Kevin McElhone