The magazine has some well-researched articles that are a touch above the kind you find in Coin World. NGC submissions, Hugh Wood insurance,...
I'll be at table 845 from Thursday through Saturday.
That's why I used the thickness of the coin, not the diameter. The calculation across the diameter is more complex and a bit "calculusy."
I don't think so. The 1.59e-8 ohms/meter is for something with a cross-section of 1 square meter. The cross section of the wire is 1 millionth...
Absolutely knife cuts.
Your lights aren't high enough. You have too much light coming at a lowish angle from 11:00 to 1:00. Look at the T in TRVST. The top edge of...
Drawn out to a wire with a uniform 1 sq. mm cross-section, a silver dollar would be 2.736 m long. The resistance of copper would be 46 milliohms,...
Here's a table of resistivity of different metals. I think the only way you could measure the difference between a silver dollar made from silver...
I was also thinking it was a "Secure Plus™" image, but the holder type says "standard" rather than "secure." Even so, this falls woefully short...
I'll say 65. There is a bit of chatter on the cheek and left obverse field, but consistent with what I see being called 65. Attractive toning...
These are graded mostly by the reverse. I see F15 details, but with environmental damage if all that black is corrosion and not dirt. Is the...
Damage to the coin on the mint mark deformed it.
There are moderators on VAMWorld that will step in and make things stop when necessary. This has including suspending members and locking or...
For better or for worse, the amount of information exceeds the ability for any one unpaid person to moderate it, much less maintain it. The...
I need to forward some payment info to the SSDC welcoming committee. Sometime this week, depending on when I pick up a certain coin in the mail...
I'm going to remember this one. I'm sure it'll come up handy in the future.
It looks much better now. The spots are most likely a result of the previous dip that wasn't rinsed well. Fortunately, they're not in the worst...
Almost always. I bought an posted one a month or so ago that looks like a 21-P until you see the mint mark.
That's going to need a quick dip and a proper rinse to fix the improper rinse after the last dip it had. Quite lustrous, horrible detail from...
:D That is funny! I'll have to remember that one.
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