The "chop marks" were added in China since the trade dollars were made for the Chinese trade. This mark means "forever"
Here's some easy help: Unless you're a Trade Dollar expert, only buy them p Simple answer, yes. You can buy one in low grade or with "details" and crack it out of the holder.
I agree with MaineBIll, I think it 's real but cleaned. A lot of the dark patina has been removed in an attempt to brighten it up. Take a close look at the reeded edge, too, and compare the photos in this thread I started https://www.cointalk.com/threads/how-do-you-spot-fake-trade-dollars-anyway.63695/
The other two reverse is shown are type II reverse hubs. Your coin is a type one reverse hub. Two different designs.
Looks real, but cleaned. Most counterfeit trade dollars have mushy details, usually the date or denticles.
I'm kinda late getting to the party here but I compared between the pics about 40 times to give a close analysis, if more to make it clear to me, anyways. I agree the denticles appear good, and the stars are hard to get right with the turn and twist as you go up or down. The "veins" of the leaves looked off until I saw the 3rd coin posted, and I thought there was something wonky with the lips but the folds of the toga fall spot on, so I think it is a difference of wear I'm seeing. "Liberty" is one of the highest points of the obverse so that wear looks normal. I am by no means an expert, but I have learned from CT experts over the past 6 months, and I was gratified to see my efforts were in agreement with the majority. I analyzed first, then read the remainder of the thread, and posting now. Appears authentic...Spark