If you have to ask then the answer is probably no. Isn't #2 damaged at the 5 in 50¢? And number one looks very light to my old eyes.
#1 looks too bright to me, but it may be problem-free. #2 looks cleaned to me - too many hairlines in the bottom of the reverse field. #3 and 4 look fine.
To me one and two won't get anything above AG simply because some of the legend is gone if they don't get body bagged as others stated for cleaning. Ag simply because don't 98% of U.S. coins have to have full legends and lettering and most of the rim intact. Having pluribus the 0 and the 5's in 50 cents almost rubbed away doesn't bode well for a G4+ grade. Three and four are the best bets just make sure on 4 that if that is blue/purple toning that it is not artificial or that the coin was dipped at some point. Coins this age have gone through those horrible years when cleaning and dipping were acceptable and even *gulp* encouraged to create bright wonderful looking specimens. That being said most of the coins that went through that, tone from the acids used in the dips and poor dipping procedures so make sure coin four is not by-product toning or that may get tagged and bagged too.
