You have a genuine, original Hudson's Bay Camp knife. These were also sometimes called "Buffalo Knives," or "Chief's Knives." These were first made some time in the mid-19th century up intil roughly 1900. There was a short article about them in
The Museum of the Fur Trade Quarterly, Vol.13, No. 3, entitled "Collection Corner - The Buffalo Knife." It stated, "
The [Jukes]
Coulson firm was one of the early suppliers of buffalo knives and most of the surviving specimens are marked by that maker. Unwin was one of the later makers..." (pp.10-11).
So, yours is likely of later production, but still a remarkable piece. If you would click this link (
Hudson's Bay Camp Knives), it will take you to a discussion thread devoted to this type of knife. We aren't really supposed to have discussions in the Classified section. I am not an expert, but I have been interested in these knives for quite a while, and you are welcome to message me if I can provide any more information, and I'll be happy to share what I've learned. That discussion thread linked above, however, will be a good place for you to start.
Best regards,
Notchy Bob