The Irish halfpenny returns from dormancy from 1928-1969. Now, the halfpennies are struck under the authority of the Irish Free State. The pair of coin cufflinks features the 16-stringed harp and doesn't show the reverse, which is a sow with piglets. The Irish halfpenny returns from dormancy from 1928-1969. Now, the halfpennies are struck under the authority of the Irish Free State. The coin itself is a collector’s item because the gold harp has been a symbol of Ireland since the 13th century and was first used on Irish coinage by Kings John and Edward I. The word, Eire, is the Irish name for Ireland and is etched beautifully on each coin. Every Irish gentlemen should make these cuff links a part of his wardrobe. Be proud of your heritage and your Irish roots. Kilt not required.