 The 1822–23 issue marked the last appearance of the symbol of a crowned harp, which represented the Kingdom of Ireland.Following this, standard British coinage was used throughout the island.Following the Anglo-Irish Treaty of 1921, the Irish Free State first circulated new national coinage in 1928, marked "Saorstát Éireann" (Irish Free State), although British coinage was still acceptable in the Free State at an equal rate.