This character is a Otro símbolo and is commonly used, that is, in no specific script.
The glyph is not a composition. Its East Asian Width is wide. In bidirectional text it acts as Other Neutral. When changing direction it is not mirrored. U+1F4B7 offers a line break opportunity at its position, except in some numeric contexts.
The CLDR project calls this character “billete de libra” for use in screen reading software. It assigns these additional labels, e.g. for search in emoji pickers: billete de banco, dinero, libra.
This character is designated as an emoji. It will be rendered as colorful emoji on conforming platforms. To reduce it to a monochrome character, you can combine it with Variation Selector-15: 💷︎ See the Emojipedia for more details on this character’s emoji properties.
El Wikipedia tiene la siguiente información acerca de este punto de código:
The pound sterling (symbol: £; ISO 4217 currency code: GBP) is the official currency of the United Kingdom, Jersey, Guernsey, the Isle of Man, British Antarctic Territory, South Georgia and the South Sandwich Islands, and Tristan da Cunha.
The Bank of England has a legal monopoly of banknote issuance in England and Wales. For historical reasons, six banks (three in Scotland and three in Northern Ireland), also issue their own banknotes that circulate in the respective areas, but the law requires that the issuing banks hold a sum of Bank of England banknotes (or gold) equivalent to the total value of notes issued.
Versions of the pound sterling issued by Crown dependencies and other areas are regulated by their local governments and not by the Bank of England. Three British Overseas Territories (Gibraltar, Saint Helena, and the Falkland Islands) also have currencies called pounds which are at par with the pound sterling.