Mr. Chambers, on the lower left hand corner of page 15 it says:
"Entirely made in our own workshops (We always have some guns in the making that we can show our incredulous customers)" (Maybe they were thinking of you when they printed the catalogue,:-))

Please take the trouble of going to http://www.freetranslation.com with the following text:
"voir page suivants le celebre fusil Charlin a canon fixe". You can copy/paste it. The result is not perfect, but you'll get the idea. In other words, nowhere does it say the Regina was made by Charlin. The only reference I have been able to find about Regina is that it was registered by Edouard Schroeder in 1903 (littlegun.com)

I still think you have valuable literature, but until you realize you cannot base your knowledge on just pictures and brand names, you will have to concede you may sometimes be wrong which is nothing to be ashamed of.

Thank you for sharing your literature.

JC


"...it is always advisable to perceive clearly our ignorance."ť Charles Darwin