Where's a research chemist when you need one? The MSDS lists the five ingredients... The metals of the coin alloy are known and the contaminant...
I believe it's technically abandoned property and your local and state law would apply. That would be sketchy - going up to the lost and found...
Two things jump to mind... Plated after minting by a 3rd party Silver proof set coin that escaped into circulation Weight will differentiate...
Might it have something to do with the specific alloy used? https://www.britannica.com/technology/bronze-alloy...
Buy or make a shim. That will let you place the lens a repeatable distance from the coin. A block of wood, a piece of sandpaper and a rubber-band...
When the word is the correct answer to the question, telling people to look it up IS the right answer. Luckily as the people answering these...
The guy who lost it had to pay for his drink that night...
Nah, it's just a mistake :-)
No, they were not. The market valued the coins more than you bid. So your bids were NOT market price.
Die Polish lines
Because it is essentially useless. No dealer is going to use an 18 month old price guide.
Stupid idea... Failure to file an accurate disclosure is committing perjury and subject to confiscation
TPG for a die chip? Take a $20 bill and flush it down the toilet. You're ahead a couple of bucks.
I would read the MDS (Material Data Sheet) very carefully. If you don't understand what you are reading do not proceed.
If it's a commonwealth coin, the boring Queen side is technically the obverse, but most people want to see the reverse.
Need photos that are in focus. Right now I see only blur.
Damaged
Please also delete what every idiot's YouTube channel told you they were valuable. If they're not providing proper information (they forgot it's...
Separate names with a comma.