1929 Catholic Emancipation medal

I have seen a few of these medal in my time but this is the only one I have seen with a pin rather than a button hole fastening, maybe it's a ladies one?

The Catholic Relief Act of 1829 was a landmark piece of legislation that removed most of the remaining substantial restrictions on Catholics in Great Britain and Ireland, notably allowing them to sit in Parliament at Westminster.
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​Central Image: The "Bell of Emancipation" (or St. Patrick's Bell), featuring a Celtic cross. The bell is a symbol of calling people to worship and the "ringing in" of new-found freedom.
​Inscriptions (Gaelic):
​SAOIRSE: Meaning "Freedom" or "Liberty."
​CREIDIM: Meaning "I believe" or "Faith."
​Dates: 1829 (The year the Act was passed) and 1929 (The centenary year of the medal's production).
​Material: Typically struck in bronze or brass.
​Type: Based on the long pin on the reverse, this was intended to be worn as a lapel pin or badge during the massive centenary celebrations held in Dublin and throughout Ireland in 1929.