Dear List:  Can anyone provide information on the Mortier large
accordion, the one with the 30-note piano keyboard on the bass side
of the accordion?  The main questions are:

1. How many were made?
2. How many still exist?
3. Which machines were they used on?
4. What would their value be today?
5. Are any available?

Any other info would be appreciated.  Thanks in advance.

Russ Doering