The Royal Australian Mint has launched a national treasure hunt.

Three million, one dollar coins marked with the number 35 and the letters A, U and S are being put into circulation (see below).

Once you’ve got all three, you can enter a competition to win a trip to Canberra, including a VIP tour of the mint.

Royal Australian Mint Chief Executive Ross MacDiarmid tells John Stanely the details.

Click PLAY below to hear the full interview 

Image: Charlie and the Chocolate Factory