Not my Bailiwick, but if the end cap is "silver" and not nickel-silver and given the handle material, the monogram and the decorative bolsters, I just think the knife was not intended for stock work or any other work that would be abusive to it. It just strikes me as falling within the "Gentlemen's Knives" category.
I have seen serpentine jack physician's knives with a pill crusher end cap, Robeson made one in pearl, but this one is not, I think, a physician's knife.
However, BRL in LG-IV on page 181, did identified a two blade curved or sway back or "Congress" jack with a "seal cap" as a physician's knife.
The profile of the OP knife is much more exaggerated that the knife in LG-IV.
The texture of the end-cap has me baffled.
Beautiful and interesting knife.