Gene,
Rumors, hints and allegations of any expertise with Darne shotguns, on my part, remain pretty much just that.

I’m just a student.

1924 was a hard line in the sand in St. Etienne, as the proof laws were updated, and many of the marks were updated or changed. It would make sense that the 6.5 mark disappeared about then.

No zebras were harmed in the writing of my post.

Best,
Ted