Thanks for the welcome etc. The seller was selling it for $65, way under what a trade dollar is worth. They also have a fake Mexico 8 reales for sale which looks heavily circulated (i have a genuine 8 reales to compare it too). Those are the only two suspect items that they are selling, all the other items they sell are 20th century common coin lots. I'm not sure if the seller is dodgy or just ignorant, heavily circulated coins are harder to verify which is why i posted here to get the advice of more knowledgeable people.
I'll throw myself onto the fake! pile. GeneralWaste, you might want to read this thread (on this forum) for some more information; hope it helps. https://www.cointalk.com/threads/how-do-you-spot-fake-trade-dollars-anyway.63695/
Many here like @TypeCoin971793 I agreed with earlier are much more knowledgeable than I on the specific coin. What I bring up would be identifiable regardless of what coin it was trying to imitate.