1985 Lincoln. Crack and spun rim?

[BC1969]

This one is out of the same roll as my last post.
Weird rotation thingy on the obverse rim.
A long die scratch? Crack?
On the reverse between OF America, down through the UB of pluribus and almost all of the way to the bottom of the memorial.
A crack by FG at the rim.

 

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[enamel7]

On the obverse you have a ridge ring. It's caused by die deterioration. The rim near the initials is a crack. The other is a linear plating bubble.

 

[galenrog]

Plating bubbles can be difficult to identify for the novice. Once I learned how many plating problems occur in zinc Lincolns, they became easier to identify. I still get one wrong now and then.

Time for more coffee.

 

[PetesPockets55]

Boy, they are both so right.
It took me a long time to realize that the dies do actually wear out.
I figured metal dies would last longer than the EverReady Bunny.

(ps. Thanks BC1969 for your in depth images and questions. It makes it so much easier to help.)

 

[BC1969]

I really appreciate the replies!
When you say "plating bubble"
Is that something that happens when the coin is minted or is it PMD?

 

[BC1969]

Plating bubbles can be difficult to identify for the novice. Once I learned how many plating problems occur in zinc Lincolns, they became easier to identify. I still get one wrong now and then.

Time for more coffee.

I'll take some fresh roast Kona please!
TYIA.

 

[enamel7]

The planchettes are electroplated with the copper. Any contamination on the planchette will cause it not to adhere correctly. This causes the bubbles.