Fourth crowned portrait of HM Queen Elizabeth II facing right, wearing the Girls of Great Britain and Ireland tiara.

The Girls of Great Britain and Ireland tiara was a wedding present in 1947 from her grandmother, Queen Mary, who received it as a gift from the Girls of Great Britain and Ireland in 1893 on the occasion of her marriage to the Duke of York, later George V. Made by E. Wolfe & Co., it was purchased from Garrard & Co. by a committee organised by Lady Eve Greville. In 1914, Mary adapted the tiara to take 13 diamonds in place of the large oriental pearls surmounting the tiara. At first, Elizabeth wore the tiara without its base and pearls but the base was reattached in 1969. The Girls of Great Britain and Ireland Tiara is one of Elizabeth's most recognisable pieces of jewellery due to its widespread use on British banknotes and coinage.

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

Engraver: Ian Rank-Broadley

A boccia player in a wheelchair throwing a ball, with the London 2012 Paralympic logo above and the denomination, "50 PENCE", below.

Boccia is a precision ball sport, similar to bocce, and related to bowls and pétanque. The name "boccia" is derived from the Latin word for "boss" – bottia. The sport is contested at local, national and international levels, by athletes with severe physical disabilities. It was originally designed to be played by people with cerebral palsy but now includes athletes with other severe disabilities affecting motor skills. In 1984, it became a Paralympic sport, and in 2008 was being practised in over fifty countries worldwide. Boccia is one of only two Paralympic sports (along with goalball) that have no counterpart in the Olympic program.

The 2012 Summer Paralympics used an emblem sharing a common design with that of the Summer Olympics—the first time this had ever been done. The London 2012 Summer Olympics logo is four abstract shapes placed in a quadrant formation spelling out "2012". The word "London" is written in the shape representing the "2", while the Olympic rings are placed in the shape representing the "0". The Paralympic version has its own distinct colour scheme, and substitutes the Olympic Rings with the Paralympic "agitos".

Engraver: Justin Chung