#1) Solid strike possible low luster my grade: AU 58 to MS 62 as noted above surface could be an issue.
#2) Coin shows circulation rub AU 55
#3) I feel this coin is a slider AU 58 with possible nice luster as the breast feathers show some possible circulation rub.
The Morgan O mint is very difficult to buy raw low end MS from photo because of the soft strike. This seller provides no description on luster to help the buyer make a good decision on purchasing a MS coin and the sellers photos are very hard to tell luster. I also noticed on another 1880-O listed that looked MS the seller wanted over $300. If I was going to buy a low end MS in 1880-O, I would buy a MS 61 slab coin for $120 to 135 and you do not have to play the guessing game on a O mint if the coin is AU or MS.