Banknotes of the pound sterling

Sterling banknotes are the banknotes in circulation in the British Islands (encompassing the United Kingdom and the British Crown dependencies), denominated in pounds sterling (symbol: £; ISO 4217 currency code GBP). One pound is equivalent to 100 pence.
The pound is the official currency of the United Kingdom and the Crown dependencies of Britain. Three British Overseas Territories also have currencies called pounds which are at par with the pound sterling.
In most countries of the world the issue of banknotes is handled exclusively by a single central bank or government, but in the United Kingdom seven retail banks have the right to print their own banknotes in addition to the Bank of England; Sterling banknote issue is thus not automatically tied in with one national identity or the activity of the state. The arrangements in the UK are unusual but not unique, as a comparable system is used in Hong Kong, where three banks issue their own banknotes in addition to the Hong Kong government.
In the Crown dependencies and Overseas Territories, the dependency or territorial governments are also licensed to issue their own pound sterling banknotes.