What happens if an oiled coin that is already in a slab is sent for regrading or just reslabbing, Secure Plus is specified on the form, and the...
The uncle's folders were stored in a steel safe. Coins stored in plastic (not PVC) and paper-wrapped rolls in the safe were fine. My coins were...
I wouldn't put any coins in a Whitman blue album, especially not copper coins. Even if they are low grade to start with, some may be thoroughly...
There is an old Latin phrase known to old toxicologists: sola dosis facit venenum (only the dose makes the poison). We know that's not always...
I've worked with acetone in labs for years, mostly used for drying glassware, but other uses too. Main concern is that it is highly flammable,...
Aye, there's the rub. Cal
Good point. However, I'd guess there's not a lot of reed counting by graders unless they are doing certain varieties or unless they see something...
My protocol for handling coins at home: Use lint-free nylon woven gloves (type used in clean rooms) and keep lips sealed or wear mask when...
Problem is that there is still more down there. So if coins you want come down in price based on market for coins above water and you buy now,...
The link is below. Can't help but wonder which S-mint gold coins will go down in value because of "new" ones coming to market. Good marketing...
PCGS once included a flake of green plastic in a slab with a CC Morgan that I had regraded . Took it to them at a show, and couple of days later...
I think we'll continue to disagree on this. There is subjectivity in the current set of graded coins, and deciding what is and is not a clinker...
Actually, using AI autoprogramming may less satisfactory in this case. The machine will have to learn grading from someone. The subjectivity and...
Computer grading will be relying on a set of image processing rules and algorithms in a program or read by a program. Someone will have to...
True, but if you are a registry competitor, a plus gets you only middle of the grade credit. Cal
When they calculate GPAs for the registry, a + adds 0.5 to the grade. A 63+ is used in the calculations as 63.5. They can say whatever they like...
A plus is a half step. 66+ is 66.5. This becomes clear if you look at how they calculate registry GPAs. Has anyone ever seen a 69+? Cal
Yup. Saflips are the standard for inert flips. Use them. I would suggest getting the 2.5" size. Large coins fit easier and it's what grading...
Nice group of Morgans. I agree with others; don't touch them now. Do not clean or polish them! You need to decide if you are going to keep them...
A grading company, CGS, in the UK is using a 100-point scale. My impression, based on UK-based forums and UK-origin youtube videos, is that it is...
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