Can anyone comment knowledgeably about chemical removal? Gold shrugs off all sorts of things that dissolve other metals. But then of course the...
Are we still on BDF_NYC's question? That was about localized red spots on modern US Mint gold.
Things can get really bad, like 1945 Europe bad, and some form of currency will still be in use. Right after the war, the Volkswagen factory kept...
Maybe. The premium the coin commands over wholesale price can go up and down. If you buy when there's a sudden demand for physical silver, you...
USD30 was the officially quoted value when that denomination first came out. I haven't seen a reference to what the real value was, but certainly...
Vinegar is acidic, acetone is neutral. Yes, you're right about purity as a problem with nail polish remover.
Under a gold standard there is a policy to control the money supply such that you can always exchange your money for a fixed amount of gold. This...
I'd check the paint section of the hardware store for acetone.
I have a TV set whose picture tube has been airtight for 23 years. You can stop gas diffusion, just not with normal coin storage materials.
Zinc is indeed more reactive in general, but does it have the same affinity for sulfur?
The best way to settle a scientific question is by experiment, and the easiest experiments are the ones that have already been done for you....
Everbank is a US bank (FDIC insured) which offers foreign currency accounts.
Bear with me, please -- sometimes I'm not satisfied until I've chewed an idea into pieces all over the carpet. So a mirror does not have luster?...
Asking because I don't know, not because I'm arguing: Can something that was minted in the millions acquire a numismatic premium, even years...
I was about to say something like that and you beat me to it. I believe things used to be more predictable than they are these days.
It's only illegal if you use it as money, but of course that is the precise definition of "coin".
There are many steps to get from a nifty technology to a successful company, and I'd recommend investigating each of those before committing money.
Don't apologize, it's not a simple question. Industrial demand will crash in a deflationary environment, which will hurt silver. In early stages,...
I searched on the phrase "most beautiful coin" once to see what people's opinions were, and that coin was one of the top results.
I'm sorry to have been unclear: I do want to be useful here.
Separate names with a comma.
