Coins of the pound sterling

The standard circulating coinage of the United Kingdom is denominated in pounds sterling (symbol "£"), and, since the introduction of the two-pound coin in 1994 (to celebrate the 300th Anniversary of the Bank of England 1694–1994), ranges in value from one penny to two pounds. Since decimalisation, on 15 February 1971, the pound has been divided into 100 (new) pence. From the 16th century until decimalisation, the pound was divided into 20 shillings, each of 12 (old) pence. British coins are minted by the Royal Mint in Llantrisant, Wales. The Royal Mint also commissions the coins' designs.

As of 30 March 2010, there were an estimated 28 billion coins circulating in the United Kingdom.

The first decimal coins were circulated in 1968. These were the five pence (5p) and ten pence (10p), and had values of one shilling (1/-) and two shillings (2/-), respectively, under the pre-decimal £sd system. The decimal coins are minted in copper-plated steel (previously bronze), nickel-plated steel, cupro-nickel and nickel-brass. The two-pound coins, and, as of the 28th March 2017 the one-pound coins, are bimetallic. The coins are discs, except for the twenty pence and fifty pence pieces, both of which have faces that are heptagonal curves of constant width, and the one-pound coins, which have faces with 12 sides. All the circulating coins have an effigy of Queen Elizabeth II on the obverse, and various national and regional designs, and the denomination, on the reverse. The circulating coins, excepting the two-pound coin, were redesigned in 2008, keeping the sizes and compositions unchanged, but introducing reverse designs that each depict a part of the Royal Shield of Arms and form (most of) the whole shield when they are placed together in the appropriate arrangement (see photo). The exception, the 2008 one-pound coin, depicts the entire shield of arms on the reverse. All current coins carry a Latin inscription whose full form is ELIZABETH II DEI GRATIA REGINA FIDEI DEFENSATRIX, meaning "Elizabeth II, by the grace of God, Queen and Defender of the Faith".

...
Wikipedia