Australian Olympic Team
Team blazers worn to the 2012 London Olympics, and the 2016 Rio Olympics were like these. It is possible that this button was used in other years, but they are not often well photographed or described so I can’t tell!
This is quite different from the other Melbourne Club button posted at http://www.austbuttonhistory.com/uniform-buttons-2/sporting-clubs-and-volunteer-organisations/?preview_id=4867&preview_nonce=b9a513f6ee&_thumbnail_id=-1&preview=true#The_Melbourne_Club
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