Looks like a thread of something got stuck in the holder. I'm seeing a crack as well.
I have seen this when the coin is a fake but not on just a normal return. Returning it is the cool thing to do.
Nice group of coins. Enjoy them.
EF details cleaned.
Post good images. That's the first step.
Minor die rotation. Nothing more.
It's been a long time for me. I'm thinking the type II S in 1979 became the type I in 1981. Is that correct?
Actually I'm wrong in a way. PCI has had several owners over the years. There was one owner that started using the 10 digit serial numbers again...
It's just damage. Welcome to CT.
Yes. This is correct. It was caused by the mint and is not zinc rot.
This is not one of the old PCI slabs. It was made not that long back in order to fool people. The font is different.
Cool. You found a cent. It's worth one cent.
Different metals are annealed in different ways but it is done to make it soft. Ferrous metal is annealed by letting it cool slowly. My son tells...
I think a bath in acetone would remove most of what we are seeing.
I call them die polish lines.
The middle one may be a small date. Need an image of LIBERTY.
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53 or 55
63
I love the toning.
Separate names with a comma.