I disagree. I think the problem is they are “bulk” precious metal. FDR confiscated gold back in 1933, but excepted numismatic coins (US gold coins)issued in 1933 or earlier.
My acquisitions are numismatic gold and silver coins 100 years old. I still need to get rid of a bar of silver before the end of the year.
http://abcnews.go.com/Business/gold-coin-dealers-decry-tax-law/story?id=11211611
Nobody I know has had any problem buying or selling large quantities of .999 silver rounds or bars. The only ones I’ve read about having problems with the feds are the guys who stupidly stamped DOLLAR somewhere on their pribately minted coins.
If you have any examples of privately minted coin makers, dealers or buyers getting into legal hassles who did NOT stamp “dollar” on their coins, please let me know.