I recently came across this quarter and would love to know if maybe the damage is done by a mint

Spidermonkey

Greenstang

Welcome to the forum.

Impossible for that to happen during the striking of the coin. Just a well damaged quarter.
If you are going to get into numismatics, suggest you study on how coins are produced
and what constitutes an error and what is damage. This will save you time looking at
worthless coins thinking they have value.

sellitstore

No, just damaged, as explained above.