Morgan Dollars Grade And Opinions Please

Some may have looked at the post I had for the 1893 CC
I ended up taking it back and picking up 10 different Morgans

A few were out of the dollar bucket and some were offered as
a good deal that were in 2X2's

Not sure how best to post .. of even if all need to be posted.
For me it is hard to tell from a low grade MS to a AU.

For one out of the bucket dollars, 1892 S .. there is a grade
where it takes a good jump in price .. so would like opinions
on its grade.







The next one, would like to know opinions on grade .. and how to tell
which reverse, 1879 S. Looks better in hand ...







Here is a group picture