Code point
U+33DF
Glyph appearance depends on your fonts.
U+33DF
So<square> 0041 2215 006DU+33DF SQUARE A OVER M is a Unicode 16.0.0 character in the Other Symbol category. It belongs to the CJK Compatibility block.
Choose the representation you need, then copy its value.
U+33DF
13279
㏟
㏟
E3 8F 9F
33DF
000033DF
%E3%8F%9F
\u33DF
\u33DF
\u33DF
\33DF