Hi vintagearmsnut,
Oh that is nice..!
I have a kindred one, also an original 'Snubby', a Webley as well, in .450 Adams...if I can dig it out, I will post an image of it to go along with yours.
I think it is a 'Bull Dog Model, dating to some time in the early 1880s. So, not quite so illustrious as yours, but, a charmer, no less.
They had some popularity here in the US in their day, of course.