Yup, I agree. Same chemicals causing it, same chemical result on/in the coin. Usually though, AT is done more quickly than NT. Toning and wear...
A neat story. If you can find the coin, it would be really nice if you could take a pic and post it. Cal
Actually the melting point of silver goes up with pressure. See: Melting of Copper, Silver, and Gold at High Pressures, Lewis H. Cohen, William...
I really enjoyed the Anaheim show. My wife was with me, and there was a lot more there to interest her than the typical Long Beach show. She's...
Why not Ripple?
I saw Charmy's latest report from Anaheim and saw her wine preferences, which are great. Cal
I find that viewing coins goes better with a good glass of wine. Maybe it's just color-matching, but I find a full-bodied syrah or zinfandel goes...
There is some pretty good image analysis software that could be applied to the PCGS True View/Secure image database that could ferret out new...
I think the most artistic seated design is on the patterns of Joseph Bailly, who was an outside-the-mint sculptor. His effort presaged the...
How can you put Barbers and Morgans in the same bin? Scandalous! :stop: Cal
I'm not about to try it for multiple reasons. And you're likely right that someone who tries to register falsely too many coins gets kicked out. Cal
Like using Polaroids for coin photography? :nailbiting: Cal
I wonder if it would be possible to generate a no. 1 registry set by going through auction records and picking top coins. Bound to be enough that...
They wouldn't need no stinkin' slabs. Just put the sticker on the coin. :) Cal
Effectively NGC does award a rank to obscured sets. They stick them between the two non-obscured set just above and below in points, but don't...
One of my peeves against both NGC and PCGS registries is that they allow obscured sets. These are sets that are listed and ranked, but the public...
Well Captain, you activate your coin transporter and beam it out of there leaving all the nasty ions and water behind. :borg: Cal
I used to have a turtle coin, but it was an ancient from Aegina. :) Your turtle is neat though. I need to learn more about hard times tokens. Cal
Great report, Charmy. Enjoyed meeting you and am glad Lou is doing so well. Mike (aka Cal)
An ultrasonic cleaner won't neutralize anything; it's mechanical, not chemical. It simply provides a more thorough rinse in the sense of having...
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