Sounds like you have Thorens that plays three tunes, and the comb has
36 teeth, hence 3/36.  There is a MMD participant by the name of
Hauke, I believe from Germany, who has a large Thorens collection.
Perhaps he'll see your request on the MMD, and respond to you.

Larry Greenfield

 [ See Hauke Marxsen's letter in MMDigest 981031.  -- Robbie