Pound Sterling (GBP)

The pound (symbol: £; ISO code: GBP), divided into 100 pence, is the official currency of the United Kingdom and the Crown dependencies.
The slang term "quid" is commonly used in place of "pound(s)". The official full name pound sterling (plural: pounds sterling) is used mainly in formal contexts and also when it is necessary to distinguish the currency used within the United Kingdom from others that have the same name.
The pound was originally the value of one pound Tower weight of sterling silver (hence "pound sterling"). The currency sign is the pound sign, originally ₤ with two cross-bars, then later more commonly £ with a single cross-bar. The pound sign derives from the black-letter "L", from the abbreviation LSD – librae, solidi, denarii – used for the pounds, shillings and pence of the original duodecimal currency system. Libra was the basic Roman unit of weight, which in turn derived from the Latin word for scales or balance.
The ISO 4217 currency code is GBP (Great Britain pound). Occasionally the abbreviation UKP is seen, but this is incorrect. The Crown dependencies use their own (non-ISO) codes. Stocks are often traded in pence, so traders may refer to Pence sterling, GBX (sometimes GBp), when listing stock prices.