Interesting video from Ian at Forgotten Weapons: a perfectly standard 1888 Mauser, but one that was smuggled into Ireland by the UVF:
https://www.youtube.com/watch?v=sGEg14Z6lLU
Interesting, if for no other reason than it sheds some light on how the shady side of weapon sales and distribution go, and that's just the kind of vague and poorly documented situation that creates the historical gaps that we can slip what-ifs into.