No, those scratches are not the result of someone cleaning the coin incorrectly. There are many ways they could have occurred during the life of...
Acetone will only remove fresh fingerprints. Once fingerprints have been on a coin for a week or a bit longer, acetone will no longer remove them....
You're each bad enough on your own. But if you two ever got together ... :wideyed: I'm not sure if the world could survive :rolleyes:
I wouldn't worry about it, appears to be nothing more than a spot of verdigris which is well known to occur on coins other than cents from time to...
Although I don't see a "need" for it, nor do I see any real benefit to be gained, I don't foresee any problem with having it cleaned. But as...
Same type, series, date and mint - but in a higher grade than the one you already own. Unless you're a TPG of course. Then it's the exact same...
No. Just leave it alone, anything you try to do would only make things worse than they are now.
Hmm. 20 years ago, 2004, was when the TPGs all began loosening their grading standards. Since then, they have loosened them 3 or 4 more times....
The numismatic community as a whole.
Yes. The amount of time it will take is variable but it will happen. And the color of the new toning will almost certainly be a different color in...
Not by me. It's just too obvious that it is nothing but a joke. An example for ya Jeff. I myself have posted many times comments similar to this...
I gotta ask, is this what you're talking about ? https://www.greysheet.com/cdn-collector-price-guidance And I don't know about the "CPG book"...
No, saw the humor, it was quite obvious. But the ad sections are just not the place for jokes.
@calcol - You need to talk to a CPA to get accurate answers to your questions.
Sure they do. From NGC - "NGC will factor white spots into its grading of modern silver coins just as it does for black spots on copper coins...
A whole lot of folks get confused about that term. And it's understandable because over the years the term has become bastardized. In today's...
Well, what do you want to do - A, grade the coins consistently and accurately, or B, grade them like the TPGs do ? If you choose A then use the...
Good to know and thank you ! But will it also remove everything else that xylene removes ?
You're the chemist Thad, I'll take your word for it. Personally I have no experience with isopropanol. But am I correct in assuming - given your...
Digging the basement are ya ? :D Boy ! That was almost 20 years ago. But short answer to your question - no, I don't have a link to it. A whole...
Separate names with a comma.
