Hello, I do not want to waste anyones time or offend anyone with my lack of knowledge...but I found this quarter my wallet. It does not fit in the coin slot (at my laundromat) and has been oddly filed. Did someone just abuse it or was this done for a reason. Thank you.
Someone abused it. It's a damaged coin. It's called PMD short for "post mint damage". Damage sustained after the coin was struck. Take it to a bank and they will give you a new one.
Remember coins are abused on purpose and by accident for all sorts of reasons. For instance, what happens to coins if they are accidentally dropped in a parking lot with a lot of grime on it. Many ppl don't care to pick up dropped change. So change can get run over by cars which can grind and scratch up. And even bend the coin. But it's still worth face value. Then maybe soneone tried to use it in a vending machine but it didn't work so they used a file on it to try and get the machine to accept it? Who really knows right? Unless you tracked the coin its entire life. Think about it. Put your "coin collecting" mind to the side and look at the damage and think it through. Don't limit yourself in why, but look at the damage and try to figure out the hundred ways it can end up like that. Because remember, no matter how damaged it is, it's still worth a quarter.
Horrible Quarter.. I am so offended! Geez.. I'm just kidding. You won't offend anyone asking simple questions. It is what I call a DEFDAM - Definitely Damaged
Reverse looks like parking lot. And run over 1000 times. The obverse could have been ground by a wheel, or stuck in a machine that had moving parts and chewed down the edge.