Is there a preference in general? It looks like you can get Perth mint 10 oz coins for roughly the same price as minted bars. I prefer minted...
Roughly what percentage of bullion (and or proof) coins fresh from the various world mints would meet a 69/70 grading standard? Are these sort of...
http://arstechnica.com/science/news/2012/02/reverse-alchemy-replacing-precious-platinum-with-ignoble-iron.ars Link above is a news item regarding...
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