Morgans To Grade!!

If the pics are scans, the luster is impossible to capture and will often cause the coin to appear darker. Here are my opinions. Without a good look at the luster, I can't hazard an exact MS opinion.

1883O - EF45 (given the weaker strike of the New Orleans coins, this may be an AU, but I can't tell for certain from the pics.)
1884O - UNC
1885O - EF45 (again, given the weaker strike of the New Orleans coins, this may be an AU, but I can't tell for certain from the pics.)
1879S - UNC
1889 - AU58/UNC (the obverse looks like it may have very slight wear to me but it might just appear darker because of luster.)

All those coins look Mint State, except the 84-O looks polished. Very hard to grade from a scan, as scans tend to hide bagmarks and it is hard to tell what the luster looks like (i.e. the 84-O may be proof-like and not polished). However, based solely on the scans I would say MS-63 to MS-64 (except the 84-O -- can't even guess on that one).