The Harp is exclusively an emblem of the State at home and abroad. It is always used by Government Departments and Offices. It also appears on all Irish coins.
The Harp is engraved on the seal of office of the President and it is also on the flag of the President of Ireland where it appears as a gold harp with silver strings on blue (azure).
The design of the harp is based on the fourteenth century 'the Brian Boru Harp' preserved in the Museum of Trinity College, Dublin.
More details on use of Harp