Looks like it's probably what's called woodgrain toning. Are the lines raised, incuse or even with the surface?
That coin is scratched to heck. Definitely post mint damage... the musings of a bored elementary school kid, most likely.
Who rubbed sandpaper over that coin? I can see the scratches that have cut into its surface. What a shame.
It looks like it may have something to do with being an improperly mixed alloy (woodgrain), due to the lines being orientated in the same direction. There is a lot of refection in the photos which indicates some cleaning has occurred.
It's PMD and the "road rash" comment looks entirely possible. I remember from years ago when I was a kid (at least 70 years ago) that I found a coin like that that had been stuck/ground in a parking meter. A penny was probably 15 minutes.
I'm not so sure those are post mint scratches. The lines are almost exclusively in the fields. If those are post mint scratches I would expect the devices take the brunt of it, but that's not what I'm seeing.
Looks like an extreme woody. Would have to be able to see the coin in hand and through a loupe. Prob raises the value a little to people who collect such things.
Everyone saying woody is very wrong. Please take a look at actual woodgrain toning. This is not it. This severe damage. This coin is worth what it can be spent for... about 1 cent.
I get what you’re saying but I see a couple of areas that are on top of the design. The photos are very good but this is probably one of those coins that you need to have in hand to determine what’s going on.