An interesting question yes.
Levine has a page on Rase Knives or Timber Scribers and as Charlie rightly points out was used in timber trades or for marking barrels, crates. Levine notes that in the c19th nearly every commodity was shipped in wooden containers so a marking tool was an essential part of commerce. The blade works with a pull stroke and carpenters used them as did ship wrights in the days of wood.
Levine says that Rase knives were mosly just equipped with the scriber blade that folds away safely into a recess in the handle but "some have an ordinary spear or clip blade as well" There were also fixed one and some made with bronze or brass handles for saltwater use.
The one shown has the Lamb Foot blade so you can infer it is English not American, tang stamps if any, will of course reveal more. The quality of Stag, shield, Rat-Tail all point to an expensive and top quality knife- something for a rich merchant or land-owner not just an everyday knockabout tool. But the inclusion of a pedestrian LF as the blade may be rather unusual, but who knows what might have been ordered from the factory or on the whim of a cutler? Just don't know. Exceptional looker though and very glad to see such an unusual piece.