Pound sterling (symbol: £; ISO code: GBP), known in some contexts simply as the pound or sterling,is the official currency of the United Kingdom, Jersey, Guernsey, the Isle of Man, Gibraltar, South Georgia and the South Sandwich Islands, the British Antarctic Territory, and Tristan da Cunha.Since September 2016, the Bank of England has issued a new £ 5 plastic note, and since then, a new £ 10 plastic note was launched in September 2017.