Might be a coffee stain variety...only reason I say this is because you can see the clad under the discoloration on S in STATES making me believe it is just a stain. Then again I have no expertise in this stuff JMO.
Yep. Looks like some environmental damage/stain. Usually from what I've see on genuine errors, the copper is more one-colored and there is a more distict edge where the surface layer is missing. I also don't think I've see an error like this that was completely isolated, not connecting to the rim (not to say that it can't happen).
<< <i>If there's a ridge around the brown area about the thickness of heavy duty aluminum foil it's partial clad.
It looks like enviromental from the picture. >>
what if....
what if the clad layer is just really thin to non-existent there ?? >>
The clad layers are rolled between two heavy steel rollers to bo reduceded to the proper thickness. If there's a hole in the strip it will still be about the same thickness as the rolls are set adjacent to the hole. There should be a discernable ridge. The end of a strip may have a tapered ridge but even it should be discernable.
Based on what I can see in the scans only, I'd say it's NOT a partial clad layer missing error.
Retired Collector & Dealer in Major Mint Error Coins & Currency since the 1960's.Co-Author of Whitman's "100 Greatest U.S. Mint Error Coins", and the Error Coin Encyclopedia, Vols., III & IV. Retired Authenticator for Major Mint Errors for PCGS. A 50+ Year PNG Member.A full-time numismatist since 1972, retired in 2022.
<< <i>Based on what I can see in the scans only, I'd say it's NOT a partial clad layer missing error. >>
While I tend to agree the thing presents a sort of enigma for me. There's no doubt something that would preferentially attack the cu/ ni but I don't know what it is. There is something seemingly going on under the D of United. I wonder if there's any apparent separation between the I and the N? It would be nice to see it in hand in any case.
There's little doubt it's damage but it lies a little outside my experience.
Comments
It looks like enviromental from the picture.
<< <i>If there's a ridge around the brown area about the thickness of heavy duty aluminum foil it's partial clad.
It looks like enviromental from the picture. >>
what if....
what if the clad layer is just really thin to non-existent there ??
<< <i>
<< <i>If there's a ridge around the brown area about the thickness of heavy duty aluminum foil it's partial clad.
It looks like enviromental from the picture. >>
what if....
what if the clad layer is just really thin to non-existent there ?? >>
The clad layers are rolled between two heavy steel rollers to bo reduceded to the proper
thickness. If there's a hole in the strip it will still be about the same thickness as the rolls
are set adjacent to the hole. There should be a discernable ridge. The end of a strip may
have a tapered ridge but even it should be discernable.
<< <i>It has a definate ridge. >>
There's also a chance it's etched with acid.
If the ridge exists at the top along the rim this is the likely cause.
<< <i>if it was created with acid, wouldnt the detail in the copper be mushy? >>
Copper is more resistant to some acids than cu/ ni.
scans only, I'd say it's NOT a
partial clad layer missing error.
<< <i>Based on what I can see in the
scans only, I'd say it's NOT a
partial clad layer missing error. >>
While I tend to agree the thing presents a sort of enigma for me. There's no doubt something
that would preferentially attack the cu/ ni but I don't know what it is. There is something seemingly
going on under the D of United. I wonder if there's any apparent separation between the I and the N?
It would be nice to see it in hand in any case.
There's little doubt it's damage but it lies a little outside my experience.