Eddi ✭✭✭✭✭

1794, Sheldon S-28. (View Post)

Both varieties of 1823 cents - N-1 (the overdate, 1823/2), and N-2, 1823 Plain. (View Post)

It a contemporary counterfeit made of 80% nickel, some copper and zinc. Examples show irregular and pitted surfaces and are typically underweight, like this one. The design is also quite different fr… (View Post)

What I do in cases like this is to soak the coin in briefly acetone. At first 15 minutes or so. If I see contaminant removal I may do a longer soak, for example 1-3 hours. If the green spots remain, … (View Post)

The majority of my collection of USA coins has not been encapsulated. Therefore, I cannot be absolutely sure they have never been cleaned. However, these are some which in my opinion, have never been… (View Post)