I think it is defacement of the die so it could not be used again, but I guess someone did.
Green Acres............
You being grounded in real Estate, you know there are times to buy and times to sell. Most people coming on to the forum or even here for many...
What is the weight and approx. width of the coin please?
I would think that if such a solution was known at ANYTIME to be SOMEWHAT effective it would still be on sell as is Nic-A-Date. And it is not ,...
Some 100 year old coins that were stored under very good preservation or just recently dipped could be toned with modern chemicals within a few...
We can certainly point you at resources, but it will take time, a lot of time, Since you showed Lincoln cents, lets start there....
Actually only 4 "different" bidders and they are showing suspect habits often seen on gemstone area by owners who boost bid their items. IMO, Jim
If humans help the natural chemical processes to take place faster and more intense. (IMO) Jim
In beginning chemistry 'chemical bonds' is taught as if all are the same. Then as one goes to the next level, they are taught as ionic and...
Jorje, Even if the date is 1943, there is not enough details to validate it as real and not a fake . Here is my '43 copper cent fake from China (...
An uncirculated 1955 cent is 3.11 +/- .13 , so from 2.98 to 3.24 is official, but a circulated coin will weigh less. Also if someone is...
If you use stapled 2x2 s, use only stainless steel staples , not the regular office supply steel ones as over time they rust ( usually in the...
Any gold layer would be so thin there would be no monetary value , even if you could remove it. Jim
Pareidolia
The people hoarding copper should read the financial news,...
Why not take AU all the way to 70, and then the 'New UNC' can go to 100. every one has to get re-certified to get the new labels. Insider can get...
Al least it isn't an " error coin joke". https://www.gocomics.com/pearlsbeforeswine/2019/05/16
The only doubling I see is Mechanical doubling on the bottom of the horiz. part of the 7 and the bottom of the 2. Jim
Its Ferric Chloride solution, used to etch copper for printed circuit boards. There is a physical reaction to minting that hardens the nickel and...
Separate names with a comma.
