YOU are as clueless as they are!
Thousands of people own and legally buy, sell, and trade U.S. gold coins, minted before the confiscation.
Myself, included.
They are NOT illegal to own or sell.
Why don't you use some of your coins to buy a clue? These coins were never issued. Never. They aren't coins that were issued, but were not turned in when FDR seized the gold. These coins left the mint in somebody's sock. Which is why grandpa never sold them -- he knew (expletive deleted) that they were hot.
This may not be the story I was thinking of, then. The one I was thinking of was the coins that were never released to the public, yet someone had them. It means they were stolen property and could be recovered.
I thought the issues was two-fold?
#1 None of these coins were legally in circulation. And since they were never legally in circulation they effectively belong to the government.
#2 These coins were illegally obtained.