Interesting: Looks like Berthon Bourlier Frères in Saint Etienne - Arquebusier existed from 1753 to 1831. The company is also identified as Berthon Bourlier Et Fils Aine, St. Etienne, France. (Fils Aine = oldest son). Can't find much more. The rib says "C Gordu Berthon Bourlier".....Claude Berthon Bourlier died in 1831 as mentioned above. That might be the "C." The gun is clearly much older that 1861....1820's?

Can't identify the Brussels Arquebusier H. Manglot. Why it's got two gun makers' names on it is a mystery. Perhaps Manglot marketed the gun?

Baluch are not Brahui, Brahui are Baluch