No, pure acetone is fine to do to almost any coin. Ones with a mint applied protective coating, enamelled, or encrusted coins may not be safe to...
Not in this case, but coins can tone very quickly after an improper cleaning as it reveals a new unprotected layer of metal.
You should have a good reason for requesting NCS, like residue or spotting on the coin, though most of that can be treated at home for little...
Yeah I thought you had the coin in hand. You can't go by the pictures on this one. The NGC verification lighting is almost always terrible. You...
Nothing NGC would or could intentionally do to a coin would ever render it details, and certainly never cleaned. Now if someone requests...
You're assuming that having an account here means you're a coin collector. The bar for making an account on a website to ask a question is pretty...
42
Q65 AU
PR63 CAM
Who is talking about a 64? Not me. I'm referring to the example you gave about the Saint. And I didn't say the difference was 8 points. I said the...
This proves my point. A functional grading scale should not present scenarios where professional graders can differ on their grade by 8 points...
No, they are MS grades only in the current grading scale. On my scale they are not MS grades. They are quality grades, prefaced by a Q. The...
Except how would you map quality to those grades? AU58 is an exception. Some 58s are there legitimately as coins that circulated but very lightly....
Yeah I've heard that before. These two coins are both 58s so they're the same quality, it's just that this one is MUCH nicer than the other one......
Shh. People aren't ready for this concept. That's why I haven't brought it up. The letter prefixes have literally never had any value.
A fair point, but I'm not sure in this example you can decouple quality and value. For example take two of the exact same coin, one MS70 and one...
Yes I would not grade that as MS64. It's a circulated coin so it should not be in an MS slab. I would grade it as AU64 or Q64 AU depending on...
A great post. As an antiquarian, a large part of my library is books related to numismatics, dating back to the 17th century, so I have some...
I believe he's saying that Insider is actually like the flat earther because he knows what he knows based on the long standing knowledge of how...
This is absolutely not what I've been saying. In fact, I think I made the point quite clearly that I take a hard line approach on MS coins that is...
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