Hello Mr. Barnes,
Nice ones. So, what's the total count now?
The 1870 appears to have AU-50 or AU-53 details. I see wear on the high points of the obverse leaves, the arrowheads, and the top of "In God". The color looks too red given the slight wear, but that could just be the way the photo turned out.
The 1865 likewise appears to have slight wear. I'd call it AU-55. Are you concerned about the green spots on the obverse? Maybe a quick acetone soak would be a good idea?
The first 1864 looks mint state, possibly as high as MS-63 brown. The dies were badly worn when this coin was struck judging from the erosion and
Cuds at the rims. Could die wear also be the cause of the missing detail at the date and at UNITED STATES, or is that maybe a "struck through" error?
The second 1864 also looks mint state 63, with almost enough red color to qualify as "RB". The dies were in much better shape than those used to make the previous coin.
A really nice group of two-centers!