What's up with this? (PMD)
JesseKraft
Posts: 414 ✭✭✭✭✭
Hi All,
I know this is PMD, but what's happening here? Buried, dug up, then cleaned? Chemical reaction to something?
This is neither my pic nor my coin (nor those of the ANS), but from a random inquiry I received today via email.
Jesse C. Kraft, Ph.D.
Resolute Americana Curator of American Numismatics
American Numismatic Society
New York City
Member of the American Numismatic Association (ANA), British Numismatic Society (BNS), New York Numismatic Club (NYNC), Early American Copper (EAC), the Colonial Coin Collectors Club (C4), U.S. Mexican Numismatic Association (USMNA), Liberty Seated Collectors Club (LSCC), Token and Medal Society (TAMS), and life member of the Atlantic County Numismatic Society (ACNS).
Become a member of the American Numismatic Society!
Comments
Looks like it's been in the ocean for a while. Maybe some sort of weak corrosive...?
Reverse looks similar?
Frankenstein's pocket coin?!
Coins are Neato!
"If it's a penny for your thoughts and you put in your two cents worth, then someone...somewhere...is making a penny." - Steven Wright
pic of the reverse?
Don't have pics of the reverse, but he said that "the same happened on the reverse, but less pronounced."
Jesse C. Kraft, Ph.D.
Resolute Americana Curator of American Numismatics
American Numismatic Society
New York City
Member of the American Numismatic Association (ANA), British Numismatic Society (BNS), New York Numismatic Club (NYNC), Early American Copper (EAC), the Colonial Coin Collectors Club (C4), U.S. Mexican Numismatic Association (USMNA), Liberty Seated Collectors Club (LSCC), Token and Medal Society (TAMS), and life member of the Atlantic County Numismatic Society (ACNS).
Become a member of the American Numismatic Society!
Well that is certainly interesting. could it be a planchet defect?
Great transactions with oih82w8, JasonGaming, Moose1913.
rule out fire. fire would distort that clad quarter up and down.
maybe this:
Looks like environmental PMD.... corrosive soil or liquid for a while...Cheers, RickO
Environmentally damaged surfaces
Hard to tell exactly what the cause is
PMD.
Could have been exposed to some type of chemical etching solution used for metallography or SEM sample prep. I'm not certain, but it does have a similar appearance.
You would be surprised by what people can do to coins when they have access to a chem lab