Indented line on 2006 Lincoln reverse-Possible Cause

A friend of mine recently came across this 2006 Lincoln Memorial with this indented line running along the bottom on the reverse of the coin. Looks like a bristle broke off from the die being polished and the coin was struck. What do you all think

 

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It looks bigger than a bristle. I need a better close-up to see if there is any metal displacement.

Chris

 

They are trying too get a better picture now too send me. They say the edges are smoothed so they do not think it is a scratch

 

Indented or raised?
Indented might be PSD.
Raised might be a die dent.
Hard to tell from the image.

 

A different view. Not sure if it is any better. They say it is indented

 

PSD.

 

Here are 2 pictures of the coin in question and one from a coin that Heritage Auction sold. The one from HA in on a 1966 example and it was described as a staple originally but they edited to say that it was not a staple at all but believed too be a detached bristled from a wire brush used to clean encrusted gunk from the surface of the dies

 

What is PSD?

 

@cpm9ball what do you think?

 

Yes, it could be a strikethrough, but I don't think it is part of a bristle. The reason I wanted a better close-up was to see if there was any metal displacement to the southeast. There would be no metal displacement in a strikethrough like this 2006P Kennedy I have.

Chris

 

@coop what is PSD?

 

Post strike Damage
is
PSD

 

Thanks @jello. What do u think

 

why is this not simply a scratch since it is not raised, as a die break would be?

 

I'm confused. How could that have happen after the strike?

 

PSD?? so that comes before PMD?

 

Uh? No!

Chris

 

If it were a scratch, you would see evidence of metal pushed up along the side(s) like the crater effect of a meteorite strike.

When a foreign object is struck into a coin, metal from the planchet cannot rise above the surface of the die.

Chris

 

No, POS comes before that.......

 

???? So many things could be what happened and I Hope you can get the Answer.
Coin Only can really tell but it's not talking.