I think I may have found the maker. I found some
very similiar looking guns by Lefaucheux. It is apparently
a pinfire revolver which I need to read up on. Don't know
what that is. It also has over-under barrels. Here are a couple
of links:
https://www.forgottenweapons.com/ris...fire-revolver/
https://www.rockislandauction.com/de...nfire-revolver