2022 D MA Quarter with interesting striation pattern

Found this a few days ago. The crescent toning stood out immediately.

Yes, I understand it has no extra value. I just thought it to be interesting because of the shape. Most others that I have found the striations are consistent with no curves. This one is definitely different. The outline is really close to the same diameter as a quarter planchette. Also, the striations come to an abrupt stop. Not sure if the strike pressure did the obliteration on the rest of the coin in such a way. It makes me question the roller drag theory.

For conversation if nothing else.

 

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Was there supposed to be an image?

 

That was the goal...innerweb issues...stay tuned.

 

...

 

Apologies, my connection reverts back to dial-up after 7 a.m. due to the great daily social media awakening.

 

Very interesting indeed for a fresh new coin looks like a improperly annealed planchet http://www.error-ref.com/improper-annealing/( @paddyman98).

 

Neat!

 

Also, if I'm correct and that's an improperly annealed planchet, it definitely has some extra value

 

Odd, especially on a brand new coin. I'm wondering if during the annealing process, when the planchets are heated to soften them before being struck, it had another planchet on it, creating a difference in heat and thus the appearance? Just my thoughts as I try to figure out how it got that way at the mint.

A chance to learn something new.
@Fred Weinberg, @paddyman98, @JCro57? Others?

 

So over annealing can produce the striations too? Until I found the 2022 above, I thought the lines were from a seized roller during the lamination process. However, that theoretically can't happen and end up with a curve in it.

 

Yes, very nice thanks for sharing your unusual and lucky find.

 

wouldn't these types of coins be considered...woodies?

 

Too uniform and parallel to be annealing issue. Much more likely to be roller marks

 

Woodies are different. The metals of a real woody have an inconsistent mix in the materials. What the quarters in this thread are is something that's made marks on the coin's surface. I came across tons of pennies like this about the time I first became a member on this site. There was lots of discussion about what it was. It's on the surface. That's why some think that it's roller marks. I was able to polish off these marks on one of the pennies that I had. I used Never Dull to do this. It was just an average penny with these marks, so cleaning it, so to speak, didn't make a difference. I wanted to see of these marks were just on the surface or deeper. On my example, it was just on the surface and the marks went away with minimal effort.

You can, in most cases, tell the difference between the coin that is posted on this thread and a real woody, by the shape of the marks running through the coin. Real woodies almost look like inconsistent wood grain, whereas the other is almost perfect lines.

Here are a few images I lifted during a google search that can explain it better.

 

Imho, it's roller lines, however the discoloration, might be annealing issue that pronounced the roller lines.

How does the edge look in that area from just past the L in Liberty to the Washingtons mouth compared to the rest of the edge? same edge, or is it darker where the darker color appears and through that area around the edge?

by the way, how are you lighting your pics? They are definitely nice and clear, but the coin looks flat and lusterless. Could be roller lines, and environmental toning.

 

I have doubts the quarter is improperly annealed.

 

Here is one that is miss annealed.

 

Hey Mr. B,
The lighting is natural light through my window taken with 16mp digital camera. I angled the coin to accent the lined and discoloration as best I could. It almost disappears at certain angles.

What's confusing is that I've seen roller lines, but never stopping and restarting in a perfect curve that has the exact same diameter as the planchette itself. I've seen toning/ discoloration, this is proof that striations can cause toning. But why the shape of the striations and toning? It's almost like that portion of the planchette impossibly missed the washing process, you would think the tumbling itself would obliterate the lines, however the toning follows them exactly. Also, it is proof that die strike pressure is not a factor for "striation obliteration"... A missing link of sorts??? Maybe if someone can figure this one out anyway. Reverse has the striations also, exactly opposite of the obverse, however not as pronounced.

Changed light source on these.

 

They don’t even look round to me