Originally Posted by Argo44
I put Ideal in "?" just in case. Eliminating the ideal from the dating equation doesn't change much of anything.

The fact it was 32 bore should have been evident from the 13.0 stamped on the water table.

1898 catalog for Manufrance exists. -great document with complete explanations barrel manufacture, powders in use, proofing, chokes, etc.
https://gallica.bnf.fr/ark:/12148/bpt6k97891530.texteImage

This looks like the model (this is black powder - semi smokeless on p.70 of the catalog):
[Linked Image from jpgbox.com]
[Linked Image from jpgbox.com]
This is very close ! The other add posted from 1914 is different. When the barrels are open there is no metal that comes out of the stock on top. So I would say it's definitely in the 1890's; many catalogs on the site you posted. To narrow down, I would have to hit the laptop and not use this android phone. Very hard to scroll these catalogs on phone; then throw French in the equation. 😁