5 Dollars - Elizabeth II Vatican State anniversary

The Vatican City State was formally established on February 11, 1929, through the Lateran Treaty signed between the Holy See and Mussolini's government — resolving a standoff with the Italian state that had persisted since the seizure of Rome in 1870. The 80th anniversary fell in 2009, prompting a wave of commemorative issues from Pacific territories whose connection to Rome is purely commercial rather than historical.

Cook Islands held a licensing arrangement that produced dozens of themed silver rounds in this format throughout the late 2000s, most destined directly for collector packaging rather than any circulation whatsoever.