Ok, so a little about the coin. 1972 S from a UC Philly Mint Set still in the mint cellophane as you can see. You will also see packaging damage this is NOT what i am trying to have identified. I circled the item i need identified. Also how does a coin get toned identically on one side and the other? The happy face toning is interesting... Thanks for helping me identify the damage or error.
It's quite possible some stray foreign matter got in the way of the strike. Best guess I can come up with. "Struck Through Foreign Matter".
The plastic ( prob. mylar) is not completely impermeable, and over the last 45 years a corrosion initiating chemical such as sulfur compounds could have enter weaker areas. This is not uncommon when a dealer has a stack of mint packs or cardboard/mylar coin holders and wraps rubber bands around the mylar to hold them together. Staples in cardboard holders can rust ( if not stainless steel ) and cause corrosions where the staple penetrates both the card board and the mylar inside. Check where toning is relationship to staple
No Staples, it came from a mint sealed envelope with 5 other mint enveloped sets. Also the set it self had been damaged when they tried to seal the plastic cellophane the coins are in. the two pennies have nothing keeping them apart because the S Penny was between the cellophane when the heat wheel ran over it. You can see the wheel damage on both the obverse and reverse. However i am not concerned about the packaging damage. The Mints shipping package had been sealed since July 1972 until i opened it a month or so ago. I keep all five of the sets that came in that package together in the package they came in.
I am however going to figure out how to keep all my silver Walkers, benjis and Jfk's away from staples thanks to your post.
Can you look at my original request and give me your opinion as to what the damage is in the red circle and what caused the toning? The toning gets me, it is a smile on the obverse and frown on the reverse. Kinda cool if you think about it that way...
Not knowing the history, it would just be a wild guess. somehow reactive chemicals had to get inside the wrapping. Then it is just a matter of time. Whether the process continues over more time is not predictable since you obtained it, it is in a different environment. The best advice I have heard is "If you don't like the toning, sell it. If you don't want it to continue, Protect it. If you want it to continue leave it alone. If you want to protect it as close to what it is now, put it into a zip-lock freezer bag( thicker than the normal ones) with some new zincolns you have scratched up as sacrifice 100% copper which will react to chemicals faster than the cent in the mint wrapping. When those cents start to turn brown get new ones or re-scratch them bright again. Jim
How about this damage? What is your opinion as to what it is circled in red? The Coin has never been removed from the mint cellophane!
The area around the rim is likely a minor struck through error. Regarding the toning, as others have said, the mint sealing process isn't perfect. Depending on how/where it was stored over the last 45+ years, anything could have permeated the package.
I was hoping for a conscientious and it seems that the damage is a struck through. As for the toning. i was really hopping to get some reason for the smile / frown depending on which side one is looking at. It is identical.. As for the coins life... i opened the Mint shipping package from 1972 when i obtained it about a month ago, it had the postal stamp on in and the tape was sealed. The cellophane was the only thing damaged out of all the 5 sets in the package along with the 1972 s cent. all the other coins show no toning not even the 1972 P cent. weird to say the least. i have a few hundred sets from 1955 to 1987 and only three sets in all had packaging issues. All three have WOW color as well.
Mint cellophane is not atmospheric controlled vacuum hyperbaric chamber with impenetrable document protection.
Sometimes they send coins that have been damaged before packaging. Sometimes the coins get damaged after packaging. Sometimes the packaging is damaged. They require a higher level of quality control.
Seems no one knows anything or enough to identify the damage i have circled in red on the reverse of the coin pictured. So i will have to make my best guess and say it is
Paddyman says it is a rim burr. I would have guessed a cud. But he knows more about it than I do, and if he says it is a rim burr, I believe him.
