Story is Rhett was gonna make a few "limited edition" pieces with about half a dozen made and this is one of two made with ivory. This is confirmed by RMK.

I don't know if the ivory was shop supplied or Rhett supplied it. Will try and find out.

If there are a few more "limited edition" pieces floating around, I don't know what spacer material they have. Will try and find that out also.
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