In 2016 to commemorate Gene Roddenberry's Star Trek 50th Anniversary, the Perth Mint on behalf of the issuing country of Tuvalu released a very Limited Issue Star Trek Delta Shaped $1 One Dollar Silver Proof Coin struck in solid fine .999 Silver and weighing one ounce of pure Silver.
(Brand New Boxed with Certificate of Authenticity)

In 2015 to commemorate Doctor Who and the Twelfth Doctor, the Perth Mint in conjunction with the New Zealand Mint, released a Limited Issue Doctor Who $1 One Dollar Silver Proof Coin struck in solid fine .999 Silver weighing one half of an ounce of pure Silver. 
(Boxed with Certificate of Authenticity)

In 2016 to celebrate the Queens 90th Birthday, the Royal Mint released a very special Limited Issue Royal Birthday Celebration Gold Full Sovereign Coin struck in solid 22 Carat Gold and struck on the Queens Birthday 11th June 2016.
(Royal Mint Boxed with Certificate of Authenticity - Mintage 500 Worldwide)

In 2017 to celebrate the Queens Sapphire Jubilee, the Royal Mint released a very special Limited Issue Queens Sapphire Jubilee Celebration Gold Full Sovereign Coin struck in solid 22 Carat Gold and struck on the Queens Sapphire Jubilee 6th February 2017.
(Royal Mint Boxed with Certificate of Authenticity)

In 2014 to celebrate Marvels The Avengers, the New Zealand Mint released a very special Limited Issue The Avengers $2 Two Dollar Silver Proof 4 Coin Set struck in solid fine .999 Silver each weighing one ounce of pure Silver. 
(Boxed with Certificate of Authenticity)

In 2015 to celebrate the Disney character Cinderella, the Perth Mint released a very special Limited Issue Cinderella $2 Two Dollar Silver Proof Coin struck in solid fine .999 Silver weighing one ounce of pure Silver.
(Brand New In Original Packaging)