Attention Error Collectors And Anyone Else That Wants To See A Cool Looking WA Quarter
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I got this in change today and would like your opinions. It appears to be struck entirely on copper sans the nickel layer.
I has very pretty toning which does not show up very well in these images.
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But still the color is nice.
Byron
My first YOU SUCK on May 6 2005
jim
Toned Coins for sale @ tonedcointrader.com
It sure looks like it's struck on copper. Has anyone out there heard of this type of error before? A different lighting scheme:
siliconvalleycoins.com
-YN Currently Collecting & Researching Colonial World Coins, Especially Spanish Coins, With a Great Interest in WWII Militaria.
My Ebay!
<< <i>couldnt you weigh it ? >>
Weighing it would only work if the clad layers fell away after it was blanked and before striking (Has to be before striking because the impresions on the coin in question are too sharp for the clad layers to be lost after striking.) But in that case the coin wuld have been significatly thinner than normal which would be readily visible plus the coin woud suffer from a weak strike, this coin doesn't.
There are two ways a full weight, copper appearing coin like this could come from the mint. The first, and most likely, is from copper sinctering in the annealing ovens. If a batch of quarter planchets are annealed after a batch of cent planchets, the copper dust left behind from the cents can be fused to the surfaces of the quarters resulting in a copper wash like that seen on tbird's coin. The problem is this kind of copper wash is very easily faked after the coin leaves the mint by either a quick flash plating of copper or I believe a brief soak in a copper sulfate solution will also work.
The second way results from an error with the coinage strip. When the clad ingot is rolled to the proper thickness, at the ends the outer nickel layers tends to end before the center copper layer so you have a short section of pure copper of the proper thickness before it tapers down to nothing. Now this end of strip area is supposed to be trimmed away before it is sent to the blanking press. If it isn't or if it is mproperly trimmed, it is possible to get a few blanks punched from this pure copper area. Since these are the proper size and weight it is possible for them to easily go through all the minting steps with the rest of the normal blanks. They would only be pulled if they are seen visually.
Since copper and nickel are almost the same density the copper coin would have the same weight and specific gravity as a normal quarter. A copper quarter would be more electrically conductive, but it would take some very sensitive equipment to tell the difference. Copper and nickel have vastly different capacities for accomodating lines of magnetic flux. Copper is fairly moderate while nickel is very high. This is why they distort the lines of the field coil of a metal detector differently. That change in the field changes the inductance of the coil and the frequency of the oscilator of the tuned circuit in the detactor. Different distortions results in different frequencies.
Cameron Kiefer
this oddity is real or fake. The only other idea I had was to get it x-rayed, but that's rather extreme as I
don't currently have ready access to such a device. I'll go to the local coin shop that sells metal detectors
and see if Condor101's theory holds. I'll need a copper test piece of similar size. Any suggestions?
Oh yeah...the mint mark had a bit of fuzz on it when I first imaged it.
San Diego, CA
I used a discriminator model to test this coin. It detected it as a cent. Same thing on two
other models. The coin shop employees said it was impossible since this coin weighed
exactly what a regular quarter should weigh. But they could not explain why a $500
metal detector consistently identified the coin as a cent.
It does happen I have a similar error
From your pictures, I would have sided with indianabyron's opinion that it somehow got discolored, but you have it in hand and could judge that better than we could. I would also expect a coin missing both outer clad layers to be a little thinner, somehow?
I tend to be suspicious myself.
http://www.caswellplating.com/kits/copper.htm
http://www.caswellplating.com/kits/
http://www.ares-server.com/Ares/Ares.asp?MerchantID=RET01229&Action=Catalog&Type=Department&ID=98
I think someone was experimenting with a copper plating system, maybe for chroming something, and that quarter was
as reject.
A lot of schools were plating pennies as science projects, so why not quarters too?
is not a "copper wash" example, and with the weight being the
same for a normal quarter, I'd say it's been copper-plated in some
way. "Copper Wash" surfaces have a completely differerent look
to them - an "original luster" look that this coin does not have.........
Fred Weinberg
for PCGS. A 49+-Year PNG Member...A full numismatist since 1972, retired in 2022
it's very possible to be copper plated, and yet show
the "proper" weight on a scale......I've seen this
many many times before.......
Think about it - if it was solid copper, it couldn't weigh
the exact same weight as a clad composition quarter.
It would be heavier, I believe............
Fred
for PCGS. A 49+-Year PNG Member...A full numismatist since 1972, retired in 2022
<< <i>Think about it - if it was solid copper, it couldn't weigh
the exact same weight as a clad composition quarter. >>
The specific gravity (density) of coppernickel clad and pure copper are the same to two decimal places (8.92) so a copper planchet the same size as a coppernickel planchet would both weigh the same.
Looks like what ametal detector dug up from under pinestraw or somebody AT'ed it.
Liberty: Parent of Science & Industry