Based on that auction, you'd do better putting $600 or $700 or $800 into eBay stock*. Edit to add: * Not to be taken as actual investment advice....
Here are two more data points for you. I came across a holed, engraved, and worn Trade Dollar. It was an 1878-P, a proof-only issue, with mintage...
Therefore, our IQ test is broken. Whatever it's testing, it's no longer "IQ".
What you're really asking here is to keep them in business, that is, make sure they can keep selling to unsuspecting buyers. Otherwise, if "ALL"...
If your IQ test yields an average IQ of 88, your IQ test is broken. It's a standardized test, normalized to an average of 100.
I wonder which would have more value: an attractive coin like this with unattractive, bold, obtrusive scratches -- or the same coin, repaired, and...
There are also lots of sources besides eBay for OGP. Much of that packaging gets discarded. There are still more coin collectors than packaging...
Because Mint packaging is pretty much guaranteed not to have any mistakes that would trigger suspicion, and because it's readily and cheaply...
No, no, it's clearly a prototype overstruck on a dime planchet as part of the Mint's production of foreign coins with fuzzy elephant...
Different people's "whiles" are worth different amounts. Some people are happy to pocket a $100 profit, and some people can't be bothered for...
Yeah, I'm thinking of the "Christmas tree" demo where you hang a copper-wire form in the solution and silver crystals grow on the wires.
I'm sure if you timed it right you'd get a nice layer of silver as copper displaced it. (Well, probably not a nice layer, more of a mossy layer...
o_O
All I did was a quick Google search, and Comsol was the site that provided the first result. So, busted, I guess. :rolleyes: If I get some time...
And that still leaves open the question (from another thread) of whether luster makes it through the copper layer to the zinc. My bet is that it...
Nitric or sulfuric acid definitely won't leave the zinc. It looks like the Mathers and Martin method uses sodium polysulfide, which you make from...
Not so much. Zinc is a lot more reactive than copper, and it's tough to find something that will take off the copper without immediately attacking...
This. Plating a cent that way will make it look silver, and won't alter its weight enough to measure with home equipment. I don't know what that...
What kind of conductivity test? Probing it with an ohmmeter isn't going to tell you anything useful, and all a Sigma machine is good for is...
Coins that were returned as counterfeit, then later acknowledged as errors? I've never heard of that happening. Can you show some examples? Any...
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