2012 National Park State Quarter-Sintered Planchet?

Hi guys,

I have this 2012 P Alaska National Park State Quarter and I would like to know what is happening on the reverse of this quarter? Is this a partially sintered planchet?

 

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Never heard of that error before but I'm pretty sure you have a urinal coin!!!wash your hands and spend it next time you have to.

 

I saw this partial sintered planchet being sold on Great Collections. Here is the link: https://www.greatcollections.com/Co...red-Planchet-Mis-annealed-Planchet-PCGS-MS-65.

This is why I asked the question.

 

Looks like there was another coin against it. See the curve of the design on the Reverse? They were laying together and the exposed area of the cladding became toned.

I have metal detected coin spills where 2 or more coins were together in the ground that have the same look. This quarter spill were in the dirt longer..


Not a sintered or Improperly Annealed Planchet
IMHO

 

Thanks so much for your informed answer Paddy! I really appreciate it. Understanding Sintered Planchet's is not easy for me. And this coin was sure a mystery because I never saw coloring like this before.

 

Improperly Annealed or Sintered
http://www.error-ref.com/improper-annealing/

From my collection

 

I know of improperly annealed planchets,the Sintered part just threw me off.So basically it's a fancy word describing a improperly annealed planchet.

 

Correct.. Isn't it nice to learn something new?

PCGS use that attribution for their slabs

 

If that actually never happens life would be to boring.

 

Absolutely true. I like your thinking!

 

Lesson learned for today thank you!

 

Toned. Something was on top of half of your coin. Here’s one from my collection.

 

Learned something new today - "Sintered".

 

Knock it off. You make me feel so dumb. Never stop posting K

 

Yea he floors me too. I think he might of maybe been wrong very few times. That’s what I like about him. Wait till he takes you around NYC