I must have missed this Keith - I like it a lot - looks as though it might even be a bit 'grey' - and I'm all in favour of a bit of distress - I've a few bits with staples too

Assume you mean an example of 'top down' rather than the modern way of attaching. Larger pieces like this which had the older style of attachment were finished by tidying up the lower end of the handle, and much of the curly finial that is seen on custards, for example, was removed.
Can't seen the lower end clearly on yours but I suspect it has the usual grinding/polishing which tidies up any irregularity. The sides and outward facing parts of the bottom end will usually be smoothed and shaped, and there's often a notch on the peak of the handle, although on yours there appears to be a flat only.
I like the underside of the foot with that cross hatching.
The style may well be Anglo-Irish with a date of something like 1820 - 1840, on the other hand it might be 50 years younger, it depends on colour, wear, stones in the glass, and quality of cutting. I take it the cutting feels sharp? I don't know the time line for the use of staples, but they appear to have been used over a long period, and we'd assume they were applied some few years at least after the piece was made.
In view of the handle, my personal opinion would be that it's not later than about 1860.
