Irish Henry VII Groat, though not sure?

Hi everyone I bought this lovely rare piece, not something you see very often it's a Groat but I'm not sure as to what monarch or pretender? It either has to be a Richard III, Henry VII or Lambert Simnel who pretended to be Edward VII in Ireland. Any help would be appreciated. The coin even in this state is rare but the clipping is making it a nightmare to identify.

 

Hola, and welcome, AJ.
Plenty of coin brainiacs here... they'll be along!
Good luck.

 

If it's any help I have deducted it to either 6412,6414,6415,6427,6430A IN Spinks 2016 Coins of Scotland, Ireland and the Islands. As it has the NVS of Dominvs or else Deminvs still visable on the reverse.

 

There may be members here who can help, but your best bet may be to click the very top right of the page to go the CoinTalk forum. The person who started Antiquers also started that site.