Bonjour ,

Here it is a generic picture , the stopper doesn't exist anymore.

The stopper RONSTAN attached  , putted on   GOIOT TRACK  Y 30 .

RONSTAN ' REFERENCE   RONSTON is RC  63283 .

The price here is €85.00   + shipping 

To reply to your friend , I can provide  this disk ,

I had it made in   France. ,

Have a nice evening

David