Help identifying shield cufflinks

[Hlp]

Hi  my mom recently passed away and I came across these cufflinks made in England.  Mom was from Ireland.
Was hoping to get help in deciphering the shield on cufflinks

[hallmark]

This crest quarters the arms of the four Irish provinces.

The order in which the provinces appear can vary. Although all of the provincial arms have been in use since the 17th century, it was only in the 19th century that they were given official recognition.