Coulson Conn published in 1987 an article about one of the most rare
musical boxes, the Euterpephon.  (I have a copy of this publication,
unfortunately without showing the source of the original one.)  He also
cites Ord-Hume who published on the same subject in "The Music Box",
Vol. 9, No 8.

Coulson Conn's publication reads like a crime novel and I think I will
be ready to add a new chapter to this crime soon.  But first I would
like to contact Coulson Conn.  Could somebody tell me his email address
or mail address?

Musically
Christian Greinacher

 [ Try: Coulson Conn <cac527@dellnet.net>  -- Robbie