Not bad advice, but you have to remember that NGC only has about 10 years worth of images of the coins they've slabbed and PCGS has very few images, maybe four or five years worth and pretty much only of coins submitted under the Secure Shield tier.
I don't know....everything looked terrible right from the start. 1. Auction house didn't offer good scans 2. Font and color on the label is terrible 3. Coin has no luster 4. Coin looks like it was made via a cast 5. These Fatmans have a history of being faked This is a good case to prove why everyone needs to better understand how coins are minted, why you need to learn how to grade a series of coins you like yourself, check labels carefully, research fakes in a series of coins you like and how they make them, and be extra cautious when buying rare coins, precious metal Asian coins and when bidding on internet (especially foreign) auctions.
Not trying to be funny. But, if I ever get the itch to buy an MS 62 1921 "Fatman" China $? I think I will pass. I am really glad you got your $ back from this lowlife. Stuff like this bothers me.