The Talking Machine Forum — For All Antique Phonographs & Recordings

The length of the canes was not the same, there was a strange arrangement. I don't remember if it was all biased towards one side, or the cut has a central higher part, lower in the perimeter or something. I'll look into Google to see if I can find the Morse clarifier... Thanks!
Edit
Nothing found.
Maybe the Fabrizio & Paul book about gizmos and gimmicks has a photo of it?