Code point
U+213B
Glyph appearance depends on your fonts.
U+213B
So<compat> 0046 0041 0058U+213B FACSIMILE SIGN is a Unicode 16.0.0 character in the Other Symbol category. It belongs to the Letterlike Symbols block.
Choose the representation you need, then copy its value.
U+213B
8507
℻
℻
E2 84 BB
213B
0000213B
%E2%84%BB
\u213B
\u213B
\u213B
\213B