Steve Bodio has a 10, might be an R10 grade. Mr. John Hill (good friend of Bodios and the Bruchet's) has a spectacular R16 in 10. There is a photo in the 1973 Gun Digest of a Darne 10, decorated with swans on a blued breech, that John Amber either owned, or photographed, in St. Etienne.
Neither Paul or Hervé Bruchet had ever seen a 10 gauge Darne at the time I was last there. A 10 gauge Darne is a very rare gun, in any configuration.
10 gauge guns were catalogued by Fransisque Darne. Not common, either.
Best,
Ted
