What is this?

This is a 1980 dime I found. I’m brand new to this but I thought it was odd. I can’t tell if this is something added after it was minted or what. Any ideas?  I apologize for the poor resolution.

Hello and welcome to Numista!

It is indeed odd but is due to PMD (post mint damage). I can't tell exactly what happened from that picture but it could not come from the mint that way.

Maybe somebody tried to make a button out of it?

Welcome to Numista. Hopefully you are having fun on this amazing website. The hole was mostly added after the coin was minted.

Very cool dime button

Thanks for the info y’all, I really appreciate your time!