The New Zealand Mint (which is private and not a government mint) is very active in the bullion coinage space. Normally, it issues legal tender coins - mostly under the jurisdiction of Niue, a New Zealand territory; however, some of its production is pure bullion, i.e. not legal tender, in one troy ounce of silver - such as this one.
This fourth collectible in the New Zealand Mint's Game of Thrones Collection depicts the Iron Throne.
The Mint says about it:
The Iron Throne in all its glory! A 1oz pure silver medallion, this is an essential for any Game of Thrones fan and collector.
Created in partnership with Warner Bros. Consumer Products, the themed packaging also features a close-up image of the throne which perfectly complements the medallion inside. The memento itself is protected by a clear, acrylic capsule housed in a velvet-lined foam.