2015 Six Coin Proof Set - 50th Anv of Royal Australian Mint with Gold Plated 50c. In excellent condition, please view photos for more details. The item "2015 Six Coin Proof Set 50th Anv of Royal Australian Mint with Gold Plated 50c" is in sale since Thursday, December 10, 2020. This item is in the category "Coins\Coins\Australian\Decimal". The seller is "sydneymint" and is located in Burwood East, VIC.This item can be shipped to Australia, all countries in Europe, United States, Japan, Canada, Hong Kong, New Zealand.