1982-p quarter weight 4.9g and no FACE Washington

wow, now I like this thanks!!!

 

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Okay, I hear you but I would suggest you reread this thread. All I see are members comments trying to educate and commenting on the damage based on your photos and comments. If you had started the thread stating that you knew this was PMD I suspect it would read be different. I do not see any personal attacks, just a few joking comments. I reread this thread and it struck me as you defending the coin as not damaged.

 

sorry but no this is raised surface all most even with the outer rim of the coin and is evident in the side pic's of the coin.

 

sure sounds like you're defending the coin as a Mint-made product.

 

yes I see that it is damaged and I am defending the coin for only the bump of metal on his face I agree and have since Fred posted his second post only adding that what I see and responding to other post's
@Fred Weinberg I do not know what it is.. but the best answer so far other than just PMD, acid, torch, sandblasted, just damage who knows,. is below

 

Yes, as is my dime

 

cool plz post your pic would love to see it

 

Its packed away or I would! I consider it a bit like cooking a pizza - You throw the crust in there flat, and after its heated all kinds of bubbles form, etc. You arent adding or subtracting dough, but the surface is changing based on exposure to variables.

 

@Raizac The minting and die making processes are well documented and understood. When you find something unusual you need to ask "how could that occur at the mint" ? Never, say "I can't explain how this coin was damaged, so it must be something else"

In this case, many knowledgeable members told you it couldnt happen at the mint. Other than idle curiosity, it really doesn't matter how the damage occurred. You need to spend less time debating the cause of the damage, and more time learning the minting process.

 

@Oldhoopster your a little late to the game

did I post on a damn scratch on a coin and ask how this happened NO I posted about coin with something that was unusual to be underweight. this could have been "this or that"ie wrong planchet, struck on over anther coin and I without asking would never have known if it was or was not anything special knowing the minting process helps yes but there are plenty of odd coins that should not exist but do and if that person didn't ask someone else's opinion then we would nerve known they existed. so your post does not help it's more hurtful than anything of value to the conversation

and I agreed with them that it was damaged and only replying to post that said it was this or that. and not agreeing with that post as you would if you thought you had something in your hand that didn't look like it had that type of damage that the poster was saying that they thought it was i.e torch lighter, acid, sandblasted this to me and looking at the coin and knowing the damage those thing's do to coin's I said that in my opinion NO that's not the damage I see and defending my opinion about that.
agreeing to the comment of

to the post below
this is just demeaning and hurtful post, in my opinion, this adds no good to the already completed post as it was done hrs ago

 

so you know the minting prosses how do u explain an overweight coin/underweight coin's and this is what I posted abought 1982 underweight coin and Washington with a blob of metal on his face
so the mint has never in its lifetime sent out an over/under-weight coin and so we all should skip weighing coins?
I am refuting your post as it does not help and KNOWING THE MINTING PROSSES DOSE NOTHING AS THE MINTING PROSSES CAN HAVE OVER/UNDER-WEIGHT COIN'S.

 

Knowing the ENTIRE minting process helps one understand under and over weight coins.

We're not talking about when the coins are stamped with the designs but more at the beginning when the rolls of metal are originally produced. They can be rolled slightly thin or thick and thus be underweight or overweight based on the depth of the metal sheet before it gets stamped into blanks. This is the reason why coins will vary in weight.

Back when hand feed short metal sheets were used normally at the beginning or end of the sheets it was thin. So one would get underweight blanks even though they at times would destroy the blanks cut out from the edges of short hand fed sheets.

This excludes circulation wear, which removes metal and thus a coin gets lighter, or any other damage than can remove metal (such as exposure to acidic environment where some metal such as copper is removed). Even surface pitting and parking lot heavily scratched finds is removal of metal.

Other damage such as plating which adds metal, or dirt, glue, solder, etc that can add weight.

 

Not sure I understand your comment, but overweight/underweight coins that are not PMD are usually caused by a mistake in the strip rolling process. This is the part of the manufacturing process where the metal sheet stock is rolled to the specified thickness. If it's rolled a little thinner or thicker, then the punched planchet and subsequently the coin will be lighter or heavier. In some cases, it's rolled to a specified thickness, but for the wrong coin, i.e. Dime to the quarter thickness spec. In this case, you can calculate what the resulting weights should be for this type of error. Hope this clarifies things

 

FYI, for zincolns this is the only coin where the US MINT receives a blank. In all other instances the US MINT receives stock of rolled sheet metal from suppliers. But the US MINT has been researching/reviewing the possible outsource of this process too.


Thus the suppliers guarantee the thickness and quality of the metal stock, and thus the resulting weight of the blank, planchet and coin. Of course quality checks are done along the process and any not meeting the guidelines, are disposed of. But the quality check is not each and every coin, it is batches.

you can watch this to see more info which only shows a couple "exciting" parts of the minting process ==>


and notice at the end how many quarters have a very shiny surface, where as many others are more dull. They just came out that way ...

 

For any coins with "blobs" on them you have to ask
(a) with the harden metal die(s) ... did the die shape shift to something else to make that anomaly?
Or maybe something happened to the coin afterwards where metal was moved beyond the die's design (up, sideways, etc) to create that blob.
(b) is there anything, any thing at all on the coin where the detail of the original strike from the die is not 100%? if so, why?
(c) did anything else change that "blob" after it was created, such as circulation wear, or anything else.
(d) what is, or is not, the correlation to everything that is seen on a coin.

for instance, earlier I mentioned the reverse. But it was ignored as it would just complicate the discussion. But here it is again. What caused this surface deformation on the wing, which I think is opposite your blob on Washington ?



On the OBVERSE
(a) ignoring the BLOB, what has caused the surface irregularities?
Why is the coin surface not PERFECT ?



and more specifically, what cause this indented damage marked in red


any time you INDENT metal, you PUSH metal and it goes somewhere.

This image shows the damage even worse than the other images


Also looking at the reverse and obverse when you add heat you'll get an expansion ....

you yourself can experiment this yourself.
grab a bunch of quarters, and a torch and experiment with various lengths of time to the torch. Or if you prefer a campfire/bbq scenario.

If a coin is acid etched, it has lost metal (and weight)
if a coin is pitted, it has lost metal (and weight)
if a coin has circulation wear, it has lost metal (and weight)

so in short, the coin has gone through multiple methods of damage to lose weight, and to get the "blob".

 

here's a quick PCGS writeup about the metal rolling process and the difficulties in it. it seems to be talking about silver ignot based rolling process. But cupro nickel is even more difficult in relation to tolerances.
https://www.pcgs.com/news/us-mint-purchases-metals-for-coin-production

 

Very true and very well explained. I was going to say the same thing as you did in your first two paragraphs.

 

this was dead thread well over 6 posts ago now nothing learned from this thread other than I should KNOW the minting prosses and I will KNOW EVERYTHING that could or could not happen all by my self by just by knowing the ENTIRE minting prosses

 

I've learned how some people can write 1/3rd of a page with nearly no punctuation as a complete run-on sentence.

 

sounds like you need/want perfection from other's @Clawcoins grammer when otu the doro the dya chool was done and why dont you just come out an say it's me see i know my grammer is F'ed and i do not give a Crap
you can still read it and understnad what i am saying your just lukcy that i have grammerly and not misspling all the word's in this post's like this ones that i purposely mispelled words