Characteristics of counterfeit silver dollar 1800?

Because the 1800 Draped Bust dollar has 5 major known varieties, unfortunately it has no group characteristics that would give it away as a counterfeit. You can check some basic things such as weight (26.96g) and the magnet test, also look at the edge for a seam and check the surface for granularity. Show it to other collectors and dealers and see what they think.

But the best thing is send it to one of the top grading services.