Pioneer knife.

[Berkley]

Rabone Bros & Co, 297-299 Broad Street, Birmingham, were “foreign merchants” (exporters) of cutlery and guns to Central & South America, and a principal supplier of materials for Cuba’s railway.
As best I can tell, they did not actually manufacture the cutlery they sold. Bernard Levine shows s horn-handled Bowie knife bearing their trademark lion couchant, which he says was probably made in Germany or Bohemia.

[Ken Maddock]

Hi
The knife handle has the very characteristic shape of a
Faschinemesser
A german working knife issued to engineers and pioneers for cutting sticks and small branches faschine is a bundle of sticks and messer meaning knife

Maybe this along with the german exporter idea of Berkley would add up
I have a few similar examples in storage if deemed helpful I could provide photos, different material on grip though
Google and you will find numerous types and examples
Regards
Ken

[fernando]

Originally Posted by Berkley

Rabone Bros & Co, 297-299 Broad Street, Birmingham, were “foreign merchants” (exporters) of cutlery and guns to Central & South America, and a principal supplier of materials for Cuba’s railway.
As best I can tell, they did not actually manufacture the cutlery they sold...

Right you are Berkley.
I have a little turn off barrel pistol, with British proof marks and signed Rabone Brothers & Cº London on the top of the barrel, the typical place for traders (not makers) marks. It was usual for gun makers not to appose their mark on pieces as ordered by merchants and instead, engrave their trade name.