Dave, have you read the actual letter from the mint to which you refer ? It was written about 1 month shy of 20 years ago - Feb. 1987. And yeah,...
It's not mysterious at all, haze is the beginning stage of toning. As for the lines, based on your pictures I can't tell what caused them for...
I could say a lot but I won't because I have said it all so very many times before. However, I'll say this much - I agree with the title of this...
When I first looked at this I was thinking bleach or ammonia, because the coin doesn't look like one that's been through a fire, and black toning...
The Coin Shop - South Lyon MI 48178 We buy and sell U.S. Coins, Estate coins/collections, silver & gold bullion, jewelry and much more! We pay...
Ehhh - yes, no, maybe ? Sometimes a question about a coin should be posted in a specific section and other times it's not really that big of a...
In a nutshell - yes.
Die abrading, die scratches - same thing. I'm merely trying to get people to understand that there is a difference between die scratches and die...
Access to the polishing machinery is a given, it's right there in the mint. And they didn't have just a random employee do the work, a die that...
Ahhhh well, someone else who knows Darek - 'tis a small world. But you being from the Netherlands and interested in coins, it stands to reason....
Please provide a link :)
Well, maybe that'll change in the future. There's a book out there that I helped write that explains a great deal about the minting process,...
Yeah, it does.
The simple and very obvious answer is - because they are not die polish lines. There's several basic things that must be understood. First, die...
Ehhh, maybe. Typically a privy mark is only used to refer to a specific person like the mintmaster or the assayer. But sometimes they were used to...
No, when the date is all that is changed it's usually referred to as an over-date. They merely use a punch and and punch the new date into the die...
I don't know. But I know aluminum is a funny and very finicky metal so before trying it I'd research reactions of aluminum to acetone.
I wouldn't say air the "worst" enemy, I'd say air is THE enemy. The very air itself contains moisture and all of the other harmful elements and...
The dremel tool wasn't even invented until 1932, and it was many years after that before it ever saw widespread use. And it was also the first...
You're partially correct in that yes they do use different grades of material when polishing dies. They start out with a semi-course diamond dust...
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