I just hope roll with Michigan Quarters 2018 and I see some damages on couple coins. Then I realized that damages are same, same place and looks. It's this mint error, I don't see damage on letters and don't looks like damage from coin machines
Looks like struck through grease. Interesting though the struck through happens at Washington's nose.
Likely grease, dust or some other debris got in the way and created this. But not an error, just sloppy coin making. I botched my first post somehow but this is what I said.