[ Ref. Ross Schacher in 230422 MMDigest ]

The disc you have is for a German Symphonion with diametrically
opposed combs. Obviously not compatible with your Regina...

If they're in good condition (projection-wise) I'd be interested
in buying them!

Nancy Fratti - Nancy Fratti Music Boxes
Canastota, New York, USA
http://www.nancyfrattimusicboxes.com/