Well not a counterfeit. But it is not a mint issue. 5 were made clandestinely and illegally, smuggled out of the mint and all 5 sold to the same "collector." It's just as illegal as a 1964-D Peace dollar, 1933 Double Eagle, and 1974 aluminum cent.
Despite its checkered history, the government apparently hasn’t chosen to deal with this like the 1933 double eagle and the aluminum penny for whatever reason. I think the government could, if it wished.
The Hawaii Five-O example sold for $3.29 million a few years back. I'm predicting $6.8 million for this baby.
I just hope a true coin lover ends up with it. Would be sad for this to end up in the hands of some wealthy foreign oil Barron’s toy collection.
But it may very well end up in the hands of a domestic oil Barron from the Dakotas.........hopefully. a Lakota Sioux.
I have no desire to own any of these fantasy coins. There are plenty of legitimate rarities that would be amazing to own - for example, a class I 1804 dollar. However, I have absolutely zero interest in the fantasy Class II or III 1804 dollars. There are plenty of legendary "coins" that were made under less than legitimate auspices, and I don't really care much about them at all.
That's a reasonable opinion, but only an opinion. Judges, the folks whose opinions of legality actually matter, appear not to equate the 1913 nickels with the last two coins you mention. (I don't think there's ever been cause for a judge to rule on the 1964-D dollars...?)