Pound sign (English Wikipedia)

"Compose Key cheat sheet". GitHub. Retrieved 12 November 2019. (Caution: the 'additional' method suggested, Compose/l/=, should produce a lira sign U+20A4 rather than a pound sign).

ukip.org

"UK Independence Party". Archived from the original on 24 August 2000. Retrieved 17 April 2017.

The Unicode Consortium (11 June 2015). "The Unicode Standard, Version 10.0 | Character Code Charts" (PDF). Retrieved 2018-01-23.
The Unicode Consortium (26 August 2015). "The Unicode Standard, Version 10.0 | Character Code Charts" (PDF). Retrieved 2018-01-23.
Allen, Julie D., ed. (August 2015) [1991]. The Unicode Standard - Version 8.0 - Core Specification - Chapter 22.1. Currency Symbols (PDF). Mountain View, CA, USA: Unicode, Inc. pp. 751–752. ISBN 978-1-936213-10-8. Archived (PDF) from the original on 2016-12-06. Retrieved 2016-12-06. [...] Currency Symbols: U+20A0–U+20CF [...] Lira Sign. A separate currency sign U+20A4 LIRA SIGN is encoded for compatibility with the HP Roman-8 character set, which is still widely implemented in printers. In general, U+00A3 POUND SIGN may be used for both the various currencies known as pound (or punt) and the currencies known as lira. [...]

"The Origins of £sd". The Royal Mint Museum. Archived from the original on 8 March 2020.
Allen, Julie D., ed. (August 2015) [1991]. The Unicode Standard - Version 8.0 - Core Specification - Chapter 22.1. Currency Symbols (PDF). Mountain View, CA, USA: Unicode, Inc. pp. 751–752. ISBN 978-1-936213-10-8. Archived (PDF) from the original on 2016-12-06. Retrieved 2016-12-06. [...] Currency Symbols: U+20A0–U+20CF [...] Lira Sign. A separate currency sign U+20A4 LIRA SIGN is encoded for compatibility with the HP Roman-8 character set, which is still widely implemented in printers. In general, U+00A3 POUND SIGN may be used for both the various currencies known as pound (or punt) and the currencies known as lira. [...]
"UK Independence Party". Archived from the original on 24 August 2000. Retrieved 17 April 2017.

For example, Samuel Pepys (2 January 1660). "Diary of Samuel Pepys/1660/January". Retrieved 23 September 2019. Then I went to Mr. Crew's and borrowed L10 of Mr. Andrewes for my own use, and so went to my office, where there was nothing to do.
"Lebanon". CIA World Factbook 1990 - page 178. Central Intelligence Agency. 1 April 1990. Retrieved 2022-06-21 – via en.wikisource.org.