G-Details on the Seated Half... Old cleaning and has since formed a patina. Maybe VF-Details on the Large Cent... Corrosion and/or Environmental Damage have virtually much destroyed the coin's major design elements. -Brian
What makes you think the half has been cleaned? I took some nicer photos and ran it through processing to make it look the most natural.
From the pictures, it appears there are scratches which would indicate cleaning at some point. Plus the grime and dirt around the harder to reach details would tell me it was cleaned at one point.
+1. Notice the shadow-like dark dirt surrounding almost every star on the obverse. It's subtle (since the patina developed), but I'm pretty darn sure the coin's been cleaned... lightly. Either way, for having been cleaned, the patina has formed nicely almost completely covering the cleaning evidence. -Brian
I'd go VG on the half, the obv. still has some nice detail, but the reverse is hard to see from the photos. It has been cleaned (one way or another), because a well worn 150+ year coin should not be white. If you could get a closer picture of the fields it would be easier to see if there are hairlines or not.