Hallo Christian Greinacher! In the archive of the German Society for
Mechanical Musical Instruments (Gesellschaft fuer Selbstspielende
Musikinstrumente) is some information concerning these instruments.
On the other side we had some publications about these points in our
society journal.  The best way would be to contact me.

Greetings to all

Juergen Hocker

Dr. Juergen Hocker, Heiligenstock 46,
D-51465 Bergisch Gladbach
Tel. 02202 932524   Fax 02202 932526
e-mail:  juergen.hocker@t-online.de