In reply to a question you've posted before (sorry, I didn't see it):
I'm using a UK keyboard (QWERTZ), that's why it's showing British Pound on my screenshot. So you're right, it's the £ sign you're seeing there.
My keyboard shows a globe, because I've set up another keyboard, in addition to Emoji and the usual one. When I tap the globe, they all are visible, so that I can choose which one to use.
View attachment 29600
If there are just two keyboards set up on your iPhone, the one you're not using at the moment will be visible there.