2025 World's Most Expensive Stamps - Penny Blue Silver Proof Coin australian mint coins Finished to The Royal Mint’s

Finished to The Royal Mint’s finest Proof standard

As exclusive as it is eye-catching

We also have an exclusive 1 of 1 chase like you've never seen before: Electrocution Kenny McCormick in 1oz 999 pure gold

It is not possible for the Mint to guarantee or foresee which of the two versions will be shipped

Sandy Cheeks

2025 World's Most Expensive Stamps - Penny Blue Silver Proof Coin australian mint coins Finished to The Royal Mint’sPenny Blue is the direct successor to the worlds first stamp. Issued in 1840, it marked a turning point in the history of communication and public postal services. Its distinctive blue colour and the portrait of Queen Victoria quickly became enduring icons of philately. This coin faithfully recreates the appearance of the stamp, highlighting its distinctive pattern and exceptional place in philatelic history.