The printing looks like the SILVER CERTIFICATE heading and seems to line up with the folds. I believe @SteveInTampa has a good explanation. This...
Did you check www.doubleddie.com and/or www.varietyvista.com to see if it matches up with any that they have listed? By checking these sites,...
FYI - WWII Canadian nickels from 1942-45 were made from this composition and listed as tombac nickels in many references
The problem with trying to pinpoint the cause of PMD and environmental damage is that there are so many, many, many ways it could happen after it...
Your initial instincts were correct about the quarter. It was damaged after it left the mint. This couldn't happen during the minting process....
Does it weigh 6 grams, 6.0 grams, or 6.00 grams in your scale. There is a big difference. A 1999 silver proof quarter weighs 6.25 gms. A...
Looks like Longacre doubling. It doesn't add any value. Attached is an explanation from error-ref http://www.error-ref.com/longacre-s-doubling/
Interesting die gouge. Maybe you could check some Lincoln Cent sites like www.lincolncentresources.com to see if it’s listed. Usually, unless...
The 1999 Canadian cent was made from copper plated zinc planchets just like the crappy U.S. Zincolns (in 2000 they went to copper plated steel)....
I consider the lines on this coin to be roller lines because they are of consistent width and evenly spaced. Improper alloying is due to...
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The slaying of an original, beautiful hypothesis by an ugly fact [ATTACH]
Sometimes coins like yours with heavier, mottled toning that may have been harshly cleaned in the past can be hard for dealers to sell and they...
Based on what you've read in error-ref, how can the mark on the rim be a different size and shape from anything on the die? If it was due to the...
Take some time and think this through. Which design element on the reverse has the same size and shape of the mark on your coin? Why is there 1...
I think somebody needs to put a little more time into studying the minting and die making process if they are going to continue to search for...
Wexler wrote about mechanical doubling and die deterioration doubling on his site. This link should take you to the section he calls "Worthless...
RDV-004 AND RDV-005 are the known reverse types for 1966. I can't see anything other than a well circulated quarter but you can check the...
You're correct, I've never taken a dryer apart, but I do know that the melting point of 25Ni75Cu alloy is approx. 1200C. [IMG] I wouldn’t...
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