Very handsome Scottish knife, especially in that it is nicely marked.....having the maker established in that period a definite plus!
These small knives that were often carried in the stocking were typically called skean dubh ,which loosely translated from Gaelic meant dark or black knife, not that they were necessarily black. The dirks were of course much larger and often crafted from baskethilt blades.
Nicely done Anne!! You're a lucky guy Bill!!! on both counts
All the best,
Jim