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Re: PVC & Vedigris?
"Verdigris", as defined by coin collectors, is crusty dark green deposits that form on coins when exposed to corrosive environments. When analysed, verdigris on copper coins is usually comp… (View Post)4 -
Re: Acetone coin sticky afterwards?
Denatonium benzoate is added in tiny amounts (way way less than 1%, we're talking ppm levels) to give the acetone a slightly bitter taste, to prevent people from drinking it. 99.99998% acetone is sti… (View Post)12 -
Re: National Treasure’s
It depends on the country, and the laws which that country has put in place to protect its portable antiquities and other national relics. Here in Australia, for example, certain culturally significa… (View Post)1 -
Re: You Don't Know the Power of the Dark Side!
The origin of the phrase "dark side" in reference to world coin collecting is only indirectly linked to Star Wars. The origin, as I'm sure those older threads will tell you, is found in the… (View Post)1 -
Re: I Want Your Thoughts on Whether a Single State Could make Precious Metals a Legal Tender
To me, the US Constitution is quite clear: Article 1 Section 10: "No state shall... coin money... [or] make any thing other than gold and silver coin a tender in payment of debts..." States… (View Post)1