Fat Man Dollar Real Or Fake

The value? People are saying $150 or so, but look at sources.
ebay recently sold this one for $400: 1920 L&M-77 $1 Yuan Shih-kai Fat Man Silver Dollar Hainan Issue NGC AU Details
This for $533: 1920 PCGS UNC [cleaned] Detail Y-329 LM-77 Fat Man Silver Dollar China $1 Coin #26774A
That's prices for AU and UNC coins sold on ebay with details.
NGC rates the coin in XF at $500
I am still stuck on the hair, which if real, could be UNC or better in grade.
True it is cleaned, which may be what makes it look off. But the ebay UNC coin sold is cleaned too, and it sold at $533.
Okay the coin if real at $1000 appears excessive, but I remain in the belief that it would be worthwhile to slab the coin, after doing a specific gravity test and measuring a specific weight to verify it meets proper specs.

I was watching this YouTube channel, and it remind me of this post, you need to turn on the captions to read what is going on, the translation is little misleading, but at the "O" version when the dealer explaining to the seller, what the dealer meant that this die was produced in Europe for this last edition.

And plenty of varieties for the Fat Man dollars that US collectors will have a tough time deciphering, never mind the TPG services.