2017 P 5C obv rev Diagonal Lines

Anyone know how where these lines might have come from? See anything else?

 

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Roller marks. Stains from before the coin was cut from a sheet of metal

 

Are roller marks considered a mint error? Thanks for your response HM

 

While they can be considered errors, you’re not likely to get any premium. I assume you’re into it for 5 cents, keep it as an example

 

No, not considered an error. Some of them can have great eye appeal though.
Here are a couple that I have kept over the years.

This Ike has very minor parallel striations. The strike nearly removed the evidence.


Not to be confused with a "Woodie" or improperly mixed alloys.

 

Tell us why Improper Annealing and Incomplete Planchet (Clipped) are errors while roller marks aren’t.

 

Good question. This happens during the minting process. So are only striking errors attributable mint errors?

 

No it does not.
The roller lines on a coin are made when the metal strips are being flattened to the proper thickness. The coils of metal that coins are made from are not produced at the mint, they are purchased by the mint. Therefore the lines seen on a coin is not a product or done by/at the mint. Just as plating issues on Zinc Cents are not mint errors except with the lame excuse that the mint released them into circulation.
just like Blanks and Planchets are not really errors.
Some of these facts can become personal opinions as some one ability to profit from Error Coins is diminished.

 

What about Improperly Annealed nickels? Inquiring minds would like to know

 

And missing clad layers?

At 5 cents I save some. Wouldn’t give any premium for one

 

See, you have all ready decided for yourself what is and what is not.

 

It’s from rollers before the coin was minted. Not considered a mint error by most collectors but nice to find and add to a collection.

 

Answered already.
As far as the improper annealing that happens during the minting process after the planchets have been punched from the sheets of metal.

 

So machine doubling, split plate doubling that involves improper annealing, which are striking errors are mint errors, correct.

 

Here is a good site for what is. https://www.error-ref.com/

 

I see Roller Marks listed under Rolling Mill Errors
If it quacks like a duck

 

Well, I guess your right Heavy Metal. I have never looked at them that way.

 

Yes, but still worthless doubling. The reason is that no two coins are alike. And Mechanical problems happen often. This is the same category as roller marks. IMO

 

Thanks

 

Thank you P&G
I calls em the way I sees em. Often wrong but still in the game