2011 Australian Wedding Six-Coin Collection - Royal Australian Mint OGP & COA. Box Description: The Royal Australian Mint presents this 2011 Wedding Collection, a six-coin set in a beautifully clear Proof finish accompanied by a nickel-silver inscription plaque. Elegantly laid out in this presentation box, the set has been specifically produced to commemorate the joy of weddings and anniversaries, and marries the long tradition of giving money as a wedding gift with the brilliance of newly minted coins.