I have five discs available for the Arion / Britannia music box.
These are listed as 5-inch diameter; the actual diameter is 4-15/16
inch [12.54 cm].  The tunes are

  #3000 Estudiantina Valse;
  #3039 Under Fire March;
  #3096 La Fille du Regimente Marche;
  #3122 The Geisha Mimoza Waltz;
  #3173 Loreley.

This machine is listed in Kevin McElhone's recent book, "The Disc
Musical Box."  I believe this music box is quite scarce as I have never
seen one in the USA.  So if anyone out there has one of these machines,
and needs a few good discs, please get in touch with me.  Condition is
good; they had a little surface rust and grime, which has been removed
with EvapoRust so they are rust free now and look very good.

Reg Smith
musicboxer@windstream.net.geentroep [delete ".geentroep" to reply]