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. Someone must have a copy:

https://gallica.bnf.fr/ark:/12148/bpt6k97891530.texteImage
The link you just showed with book, in thumbing through pages for whatever that year is; only shows 20, 16, and 12 ga