The badge of Ireland, used mainly by international sportsmen and teams, is the
Tradition has it that the patron Saint of Ireland, St Patrick,
explained the mystery of the Christian trinity by using the trefoil shamrock to
The Shamrock is also used in the logos of the Irish Tourist Board
and Aer Lingus.
The use of the Shamrock is restricted to use by the Irish State
or its licensees by its registration with the World Intellectual Property
Organisation as a symbol of Ireland.
If Ireland was to pursue this and file suit against everyone that uses the likeness of the shamrock
or charge a fee for its use I would image Ireland would be one of the wealthiest nations in the world!