Dear MMD'ler,  I would like to know more about 5 metal-discs I got
a while ago.  Please look at following home page with a picture I have
created:

   http://home.t-online.de/home/h.marxsen/disc1.htm

The diameter is 12 cm (4 3/4"); the hole in the middle is 2 cm (25/32");
it has 12 tracks.  The holes in the tracks look like holes of a vacuum
controlled aparat.  Please could you tell me more about the aparat to
run discs like those.

Thank you very much in advance.

Hauke Marxsen (Germany)

 [ The image shows that the center hole is notched to accept
 [ diametrically-opposed drive pins.  Hauke lists the five tunes:
 [
 [  530 Zinnsoldaten / 480 Die Rolle / 454 Heinerle /
 [  398 CasinoLied / 171 Holzhacker
 [
 [ Maybe it plays a tiny reed organ?  -- Robbie