The images make it difficult to grade. You can't see luster in these photos, which is essential to grading above XF. Also, the image of the reverse is pixelated... I don't know why, but it is also going to make grading of detail difficult. The luster is going to be the key to being able to grade this coin. I wouldn't depend on any grade given from these images.
AU details "streak removed" or "artificial color" It has au55 details just messed with but what do I know.
The apparent lack of toning in the protected areas causes me to pause. Makes me think the coin has been dipped. If so, then specifying a grade doesn't make sense.
I picked up a trade dollar a while back. It had the same look as the one pictured on it's back. The very small bumps, is from the casting. I checked the coin later and it was not to weight. I did not pay much for it. A person in our club is an expert on this type, and he said that it was not real. I still have it to show and tell and to check other coins of the same time period.