No. Slabs provide reasonable protection by themselves, but toning can still occur inside them. What I mean is you should store coins in an...
If properly stored, toning can remain stable on coins for decades.
If, by "cleaning" you mean dipping, then, yes, dipping a coin can go wrong and lower its value. You can be left with a literally lack-luster coin...
In place of sulfuric acid, you can use citric acid as well. This works better because the acid isn't as strong and doesn't attack the silver as...
Artificial Toning and Natural Toning. You'll also see QT (Questionable Toning), QC (Questionable Color), and MA (Market Acceptable) sometimes, too.
Wow, great coin! Looks like it might have two-sided textile toning. There's a rarity right there!
I would definitely buy that coin. :-)
If the black stuff isn't crud, I don't think you're likely to like the way it turns out. I'd only dip it for the experience, without expecting...
Neat! I've literally never seen a coin struck in a broken collar before. :)
Fraud is a crime of intent. If they don't know what they're selling, it can't be considered fraud on the seller's end.
Any coin I own worth over $500 is going to be certified at some point, if only for authentication purposes.
You linked to the quarter eagle page. You have a half eagle.
I'd avoid any kind of swabbing. You can soak in acetone or xylene almost indefinitely. With respect to coin metals, they're practically inert....
I'd buy that coin just for funsies.
I'd start with distilled water, keeping it covered to avoid too much in the way of airborne particulates getting in. If a couple of days of that...
Let me clarify. I was wondering if there was a place that has some or most of the security properties of a bank box, but was either not...
I would have upped my grade to 65 had I known it was "super lustrous." :) Nice coin!
I'm guessing the first image is photoshopped, and the second is borrowed from another source. I'd be surprised if there's even a fake coin to go...
I'd assume that meant the actual gold content of 0.96750 oz.
Just out of curiosity, how's the grading of "PGCS"? ;)
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