https://en.wikipedia.org/wiki/British_and_American_keyboards#Apple_Macintosh_keyboards https://en.wikipedia.org/wiki/British_and_American_keyboards... "The # s

https://en.wikipedia.org/wiki/British_and_American_keyboards#Apple_Macintosh_keyboards https://en.wikipedia.org/wiki/British_and_American_keyboards... "The # symbol is replaced by the £ symbol (as on PC keyboards); the # is available by pressing ⌥ Option+3 More recent Apple British keyboards move the backquote/~ key to the left of the Z key and replace it with a section sign (§) and a plus-minus sign (±) respectively. The Enter key spans two rows and is shaped similarly to the Enter key of many ISO PC keyboards."