1913S - G4, slight environmental damage. the color is attractive, looks like an impure planchet composition
1910 - VF25, obverse is closer to 30, reverse is closer to 20, you can split VF30/20, again, slight environmental damage
1910S - VF20, strong reverse makes up for a weaker obverse, environmental damage, should get cleaned up to prevent more
1911 - EF40, strong strike! maybe some environmental damage though.
1920D - F12, with some environmental damage