The fifth crowned portrait of HM Queen Elizabeth II facing right, wearing the George IV State Diadem and drop earrings.

The George IV State Diadem, officially the Diamond Diadem, is a type of crown that was made in 1820 for King George IV. The diadem is worn by queens and queens consort in procession to coronations and State Openings of Parliament. The piece of jewellery has been featured in paintings and on stamps and currency. It can be seen in the Queen's Gallery at Buckingham Palace.

ELIZABETH II DEI GRATIA REGINA FIDEI DEFENSATRIX means Elizabeth II, by the grace of God, Queen and Defender of the Faith.

Engraver: Jody Clark

The letter P represents a post box.

Introduced in 1852 the post box, or pillar box, was created just 12 years after the introduction of the Penny Black postage stamp. It wasn’t until 1874 that the bright red colour was chosen to replace the 1859 green that had been introduced to standardise the boxes.

According to the Royal Mail, a post box stands within half a mile of over 98% of the UK population and there are around 115,500 pillar, wall, and lamp boxes to choose from. Each post box has a story to tell and many have particular meaning for local communities.

In 2012 to celebrate Olympic gold medals for Team GB, selected boxes are painted gold.