@Ed C Why did you make another post? You were given the correct answer - heavily polished die - in your last post. BTW: While you may not be...
@Darren Edwards Book mark the following site. Not only does it have a list of known doubled dies, it has good explanations of mechanical...
Is that better than an 83-D large date? [ATTACH]
Not a missing clad error. It was soaked in acid. I used to do this all the time in the university chem lab
Plating blisters, IMO
It's post mint damage. It could not have left the mint looking like that.
Not a doubled die. The date took a hit. The rest of the coin appears to be damaged from corrosion or buildup (you said it was black). Not...
Rough guess, but I think you have the the following listed in Numista, Sol de Bearn attributed as Gadoury 350a. Check the reverse legend. Is it...
On copper plated zinc cents, once the plating is breached, the zinc is exposed to the elements and can corrode. Similar to what happens to iron/steel
They are absolutely not D's. The copper plating is approx 8 microns thick (0.0003"). Once it's breached from a scratch or a plating blister...
It's not about the grammar. It's not about the education. It's not about the numismatic experience. IT'S JUST TO DARN HARD TO READ AND...
Congratulations My 40th comes up next year. Joined just as I finished High School. In the early 90s, I thought about getting a life membership...
While it doesn't answer your question and you may already have this info, here is a list of known die numbers in case others are interested...
Looks like an RPM. You have a lot more patience than me to sort through a the listings. I'll take your word that it's a 061 :watching: Nice find
Did some more checking on the numista link you posted. There is no 1707-A. Also, note the French descriptions. I'm pretty sure flan reforme is...
Hard to tell since it's over struck on another coin (I think I see a 94 from the under strike). Your choices are 4, 5, 6, 7, 8, or 9. I would...
I can also confirm that a quarter will completely melt at 2850 degrees F. It wasn't my dumb mistake, but when I worked for a company that made...
The good news is this isn't about a collectable coin. In mid 1982, the copper plated zinc cents were starting to show up in change. I had read...
Nice debris filled die error
That's probably the explanation. Why would anybody want to hear what a retired Chemistry PhD has to say, anyway. :wacky:
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