I am in the same boat except the scratch under the star, that scratch make me wonder if the debri was still attached to the coin and removed.
Struck through. The striations on the lower point of the star are slightly out of line with the others as a small portion of the incuse part was affected also. Not explained very well, but hopefully understood
I like these. It makes me think long and hard about what I see and my mind attempts to recreate a scenario that would suit what I am seeing. Perhaps the 10x magnification makes that damage appear worse than it is.... But for the life of me all I can think of is an encrusted metal detected coin that was scratched by a digging blade of some sort.... Is the 10x magnification making this appear worse than it is?
OK This is a hard one. Ignore the PMD (scratch) from the point of the star. The clue to this characteristic is its color. This is a portion of a coin that did not touch the die face. It is the color of the original planchet surface. The lines in the gray area were on the planchet. Hard to believe - right? I expect the planchet was adjusted. The proof that these were on the planchet is found inside the "dots" at the lower right. They are struck out in the field. Because of the nature of this characteristic, I'm guessing something like an oil was on the die so it is PROBABLY a strike thru. The only thing I can say for sure is that the lines were on the planchet and not part of the strike thru.
I agree completely. Those are definitely roller lines, or roller striations. With a strike thru it all depends on the density of the material that is struck thru as to what the unstruck area looks like.
I don't think so, the lines are too uneven and some too severe to be roller marks. I think he nailed it when he called them adjustment marks on the planchet. If they were roller marks they'd be completely across the coin and we'd see lighter, less severe traces of them on the other raised devices like we can on the 2 stars.
It would help to know the age of the coin. Sometime after 1830, the mint switched to using finer files and made adjustments on the edge of the planchets. https://forums.collectors.com/discussion/1070558/adjustment-marks
Roller marks usually get struck out, with the right pressure. Maybe I missed the fact that this is a gold coin and the planchet was heavy? And a file was taken to the planchet to remove the excess weight, Is that right?
Now, could the area have been filed too deep, and the die never made contact to the area in question?
With this coin it was the grease/oil that prevented that contact, stopped the lines from being struck out. When it was a planchet the lines we see now extended beyond where we see them now - and they were struck out for the most part. The faint traces of the lines we see now on those 2 stars are only visible because the stars did not get full struck up all the way. If they had, then they would have come into contact with the die, the metal would flowed, and the lines on the stars would have disappeared. The very same principles apply to the specific question you're asking. So yes, sometimes pre-strike adjustment marks can still be partially visible on struck coins. Sometimes only in certain areas and not others. In the fields they will generally disappear with the strike because the fields pretty much always come into contact with the die, but it's always a question of how much pressure and how much metal flow there is. So if the lines are extremely deep, then yeah, sometimes traces can still be seen in the fields. If pre-strike adjustment marks end up in a device area, if that are is fully struck up then they disappear, and if the area isn't fully struck up then traces will remain visible. We also have to remember that there are sometimes post-strike adjustment marks, and those are always visible.
