Photos from more of a horizontal angle, but looking at what you've presented, it almost looks like a huge die scratch, if that line is raised. That would be intriguing in itself. Z
Hi @Marites Foertsch, just sticking in my two cents. Based on the shadows from your last photo, it does look like a scratch and not raised. The "dark side" of that long groove is on its right. Your light source is from the right. If it were raised, the dark side would be on the left (just like the "T" and the "Y" which are raised).
If I look closely it appears to be Damage. It looks cut into the coin but along most areas of the groove it seems to have a small amount of higher on the left side.
