Here is the website I credited in the article for that lark mirror collection: http://le-miroir-a-alouettes.fr/

This guy has apparently devoted his life to these it seems!

The "Catalogues par Années" (Catalogs by Year) section has the most info. It lists years that various ones listed with their catalog image and then the the pictures of them from his collection.

He has a whole section in there on how to display them too so there much be other collectors!

Also, for instance, here is the whole page about the middle one in your collection, @GLS : http://le-miroir-a-alouettes.fr/1892-manufacture or maybe it's this one: https://le-miroir-a-alouettes.fr/brevet-chaillet