Hi, I got this coin today in change and it just seemed odd. It's pretty worn and it has a groove in the edge that goes around the entire coin. I have Googled to see what I could find, but really got no answer. I'm wondering if it's what you call a railroad rim? Is this an error or normal for that year, or something else? Thanks
Acid bath. Copper succumbs to acid quicker than the clad plating. Also, the surfaces of the coin appear to evidence the same.
Here are three older threads on the same type of damage: http://www.cointalk.com/t203787/ http://www.cointalk.com/t207945/ http://www.cointalk.com/t195608/
Thanks for your patience and expertise. Sorry for the noob question. I should have searched deeper into this forum. Please feel free to have admin delete this thread. I'll scurry back to my own world now.
Don't worry about it. The other threads were cited for informational purposes should you want more on the subject. Don't ever hesitate to post, ask questions, or contribute.
Satch, although this does happen on an acid bath all the mints are known to make this mistake, i have 2, 1970's varieties yrs. and a 1996, quarter with this error upon getting it graded i was asked if they could be sent to some u.s.mint verification and recognition center, which i gladly said yes, anyhow guess they were checked not only for acid residue but everything else and they came back as an authentic mint error, so please have graded, cause as the gentleman advised there are numerous quarters damaged from acid baths. Hope this helps and iam not trying to discredit anyone's comments.
Also one thing i might add this error was extremely hard to be recognized, guess from so many individuals having the ability to acid bath or have them done adds difficulty to the coin.
We made a bunch by soaking them in Coca-Cola for a couple of weeks. What are you talking about. Where did you send them for grading. Who asked you if you could send them to a "some u.s.mint verification and recognition center" and what was this "center". You have left me very confused Mr. seeker.
@Coin seeker This thread is over 5 years old and the last time the OP was on this site was the day he/she posted this question. It is due to chemical etching of the copper layer of the clad after it left the mint. IT IS NOT A MINT ERROR There is a 0% probability that this would be a mint error (and I am not using 0% as hyperbole). Cladding for planchets is made in long sheets/strips. The blanks are punched from that sheet/strip. Although rare, it is possible for defects in the cladding to show up in a minted coin (Missing cladding and partial cladding for example). But to have a circular defect, the is just slightly smaller in diameter than a quarter blank, and to have the punch hit this spot dead center? Not going to happen. I just wanted to clarify this for any future newbie that stumbles onto this thread. DO NOT waste your $$$ getting anything like this authenticated.
Hey. I'm interested. Dont be a pishover or thin skinned. I like your coin and want to know (how and why) if you just bolt neighter one of us will be the wiser. Now please continue this thread
That's odd, I also have a quarter with a similar edge. I attributed to some kind of annealing error but what you have said about acid has convinced me this was not done post mint. It seems awfully strange for different people to have a quarter with very similar edge, mine is almost all copper and silvery just on the reverse part of the edge. Okay for no reason at all, the same you say pmd was caused by a person with acid. The effort could not end in anything more than a quarter which should be spent as you said.Maybe its part of a conspiracy by the acid man to mass produce acid edged coins in order to finally end up with an error coin no one knows got the way it got. And there are some of those in existence.