It really helps to provide the facts if you want prompt accurate answers. Especially as you are asking a question that is not only not Pages for Mac, it is actually not Mac.
Your App is probably using whatever monospace font is available in iOS, you haven't shown us.
As the link points out, the double stroke dollar sign is just a font stylistic convention and not considered a Unicode glyph.
It is not uniquely the escudos, as Scrooge MacDuck testified when he gazed over his swimming pool. Now that The Swamp is reverting to its natural state, non-trickle down economics run by alligators, it may become the character style to mark the return to the Good Old Days when only the Right People are allowed to possess money. A commodity wasted on the general populace.

Peter