Queen Elizabeth II's office assured her representative in Australia he had the power to bring down the Australian Government a week before he took the extraordinary move in 1975 and created a political crisis, according to letters released on Tuesday.
The National Archives of Australia released more than 1200 pages of letters and press clippings between the monarch's office and Governor-General Sir John Kerr from August 1974 to December 1977 after a court ruled in May that they could not be kept secret indefinitely.
Kerr dismissed Prime Minister Gough Whitlam's reforming centre-left Labor Party Government on November 11, 1975, to resolve a deadlock in Parliament on the authority of the Queen, who is Australia's head of state.
The Queen's private secretary Sir Martin Charteris wrote to Kerr on November 4, 1975, that the monarch's power to dissolve a parliament had not been used in years and some argued that the power no longer existed.
"I do not believe this to be true," Charteris wrote.