1921 British Trade Dollar B Mint Mark Plated Or Gold?

It has no attraction to a strong neodymium. I only say plated because a think plating could add that to the silver weight. But on a coin like this that would be almost a hate crime to the numismatic community. I'm going to check its density next. If its funky ill bring it to get xrf scanned tomorrow.
None of the scuffs or wear on the coin show any discoloration.

And its specific gravity is saying a slight bit denser then silver. Like a thinker gold plated piece if silver would be

My intuition is that is a fake - the fields look a bit "bubbly" to me, maybe indicating a cast copy, gold plated to attract more attention.
Confused as to the weight - first post said 27.9g, but later 37.2g?
Also not sure the silver test has been applied correctly. If the Neodymium magnet shows no attraction at all - when rested on the coin inclined it slides off rapidly - that would indicate non-silver, probably cupro-nickel. If the magnet slides off slowly, maybe twisting or holding occasionally pausing, that would be silver. (Of course, if it sticks firmly that would indicate iron or nickel.)

This link demnstrates the sliding silver test:
https://www.youtube.com/watch?v=8gLB2uMAMYM

Fake reproduction, looks way too fresh and copied to be real. Has a newness about it. Did you buy it off a Chinese seller or Chinese based website like one named after an Arabian nights character or a a word you use to describe something you desire.

Almost looks like the wrapping on a chocolate coin.