The people that sent them in were the heirs to the man that obtained them from the mint, most likely in a pre-release exchange which the mints did all the time for employees and friends of same. That the coins weren’t subsequently “monetized” (for whatever that term is worth amist the construct of the illegal destruction of the currency system at the time) is merely a fluke of history.
What is going to happen now is that they will either A) be used as a fantasy value backing for the emission of something on the line of 7 or so billion dollars of fiat currency, or B) end up in the hands of special crony collectors within the Federal Reserve, or Government...
Well, I don’t know where we go from here. Perhaps new information will come out that will tell us the truth about how the coins were obtained by Switt?
I think a display in the Smithsonian would be good. They are great examples of the old coinmaking art.