Odd treatment of symbols

[JoshCooley]

I noticed my $PS1 prompt was misrendered within termX.

Here is how it looks in iterm2:

But within termX, it looks like this:

But it doesn't seem limited to how to how it looks. If I try to copy the string with pbcopy<<<$PS1, I also get two different outputs.

iterm2:
�(B�[m�[7m🌮 SeñorCooley🌯 �(B�[m \w �[7m $?�(B�[m\n\$

termX:
�[0;10m�[7müåÆ Se√±orCooleyüåØ �[0;10mÓÇ∞ \w �[7mÓÇ∞ $?�[0;10mÓÇ∞\n\$