These old coppers are difficult to grade. Both surfaces appear to be original, but I am on the fence about the G4 grade. To me, in order for a coin to qualify as "Good", all lettering must be readable and there are definitely some weaknesses in some of the reverse letters. It is possible that, with this coin in-hand I would give it a G4 grade with no problem. Judging from the pictures, I see it as either a VERY strong AG3 or a weak G4. (Maybe there should be a grade of AG3.5)

I agree with the S-255 attribution, though it appears that only the right foot of the T is broken. This may be an optical illusion due to the wear on the coin. The foot on the Y is definitely broken and the 3 is slightly slanted.