William Wood, producer of the Rosa Americana series of brass coins, struck copper farthings and halfpennies in England that were intended for use in Ireland. These coins were of a heavier weight than coppers then circulating in Ireland.

The Irish accepted these coins at first, but over time rejected their English origin. Jonathan Swift and other Irish intellectuals led the homeland attack on Wood's coinage, setting the stage for Wood's abandonment of the project in under three years. The rejected coins eventually found their way to the American colonies, where they circulated up to the Civil War!

These coins were struck in farthing and halfpenny denominations, bearing the dates 1722, 1723 and 1724. The obverse depicts a bust of King George I facing right with the legend: "GEORGIUS.DEI.GRATIA.REX." The reverse of most 1722 coins shows a personification of Hibernia playing her harp (known as harp left). A few 1722 coins and all 1723-24 issues show Hibernia holding a palm branch in her left hand, while leaning on the harp behind her (known as harp right). The reverse legend for all years reads: "HIBERNIA" followed by the date. Many die varieties are known for all issues.