I had previously posted and discussed this quarter and written it off as plated but never thought to check the rim edge. If it was plated wouldn't the edge also be plated?
The quarter is 25 years old. Isn't it possible that it was plated a long time ago and then someone flattened the edge (beat on it!) to reveal the copper? Why is this coin an issue to you? It is obviously not silver or a proof, and it is so beat up that its condition is not noteworthy.
From your pics, it looks like the lower points of the reeding are silver colored not copper which would indicate it was plated at one time. If not, it could have been polished. Just because it looks different doesn't mean its an error. If there is something that could have occurred during the minting process to make your coin look like that, one of the members would have said so. There are a number of members who are very knowledgeable of the minting process and regularly read and post here. So, if its not plating or polishing, what type of error Might it be? You can always see if it matches anything on www.error-ref.com. You can also look up some of the minting sites/videos that have been posted to see if you can Provide a plausible theory on what happened. Foreign planchet? That's not possible since its clad. 40% clad? The mint stopped using that almost 20 years prior to your coin plus they didn't have a copper core. The more you know about the minting process the easier it is to differentiate between real errors and junk. It takes time, but is worth it if you're going to search for errors
Yes, the edge would also be plated. It looks to be cleaned with a jewelry buffing wheel. The raised metal from the hit marks on the cheek are gone indicating it was polished.
I noticed that also and compared it with another quarter from 1980 and attributed it to to composition of the decade. Moderns are copper color in the grooves..
I tried. I found only prooflikes. Even those were not as chromey as this. I just find it strange. I also read that there was some experimentation in the 80s with chrome plating dies and quarters found struck with those dies are still not as shiny as this one. Like I said it's just strange. But thanks again
_sometimes you can at least get a story out of a coin like my gold plated dime. It is worthless but at least I can be confident that it was released into circulation by Sprint as part of a sweepstake promotion. I will never be certain but at least it's a possibility.
Welcome to the site. A 1980-S quarter would indeed be part of a proof set, which explains why it's shiny. Sometimes they end up in circulation for unknown reasons. If they take some abuse, they are usually referred to as "impaired proof". Though it's not worth a lot, I'd keep it myself. Consider starting a new thread and posting some pictures of it if you want some opinions.
This stuff works wonders. I used to shine the brass on the Midway with this stuff. Leaves a dry white chalky residue on areas that are not wiped off after application. My vote is this coin was very recently nevr-dulled to a mostly brilliant but temporary shine. Ref the reeded edge of the coin in the third picture attached. What looks like a dry white chalky residue is visible in the reeding.
That's weird. The new poster I was responding to was here last night but now gone without a trace. Oh well.