1993 Zincoln.over Polished Die?

I'm guessing Grease Filled Die.
John1

Looks like a struck through error (grease) to me also. The grease prevent the devices in that area to form. Seems funny that grease can prevent that from happening. But the hydrolic jack meves heavy things with just oil. A keeper in my book. I have several so far. I don't expect to make anything on them, they are just conversation pieces.

film of grease pushed around the field of the die. The lines are from rolling of the planchet. They are so small they don't get removed from the striking process. If you had two coins from the same die and they are in different directions, you would see them for what they are.
https://www.coincommunity.com/forum...ng_Marks.jpg
If you note the very thin lines that run in the direction of the arrows, they are the direction the material was rolled. They are not removed during the striking process. Not the two identical markers. They are from the same dies, the position of the rolling lines are different.