The keepsakes include a £5 crown and a 50p - the first of its kind to celebrate a royal event.

Both coins feature unique designs and a portrait of Her Majesty.

Clare Maclennan from the Royal Mint said: "The Platinum Jubilee celebration is a spectacular first for the British monarchy and for UK coins, and it is fitting that this historic anniversary has been celebrated on 50 pence - which is Britain's most loved, collectable coin."

Designed by Osborne Ross, the 50p features the number 70, the Queen's cypher and the years that span her reign.

The £5 crown, designed by John Bergdahl, shows a shield of arms.

Both are inscribed with the words "serve you all the days of my life" in reference to her longevity as monarch.

In addition to the Jubilee coins, the Royal Mint has unveiled three other special coins.

A £2 Dame Vera Lynn coin will feature a portrait of the wartime singer, who died last year.

The centenary of the death of inventor Alexander Graham Bell has been recognised with another £2 coin.

Designed by Henry Gray, the coin features the dial of a push button phone with the words "pioneer of the telephone", honouring his most famous invention.

And there's also a striking 50p to mark next year's Commonwealth Games in Birmingham.