The Mint of Austria have unveiled (13th March) the third coin in their insightful and informative silver coin series which salutes the life and reign of Austria’s first and, to date, only female head of state as well as the only woman to rule over the vast Hapsburg Empire — Empress Maria Theresa. The series celebrates the 300th anniversary of the birth of Empress Maria Theresa with the issue of four-coins and is based on the four cardinal virtues which governed the Empress throughout her life