Are you kidding? That 1909 S has a minimum of at least $500... and yours looks real good. $270 That's a steal. I'd get it graded if I were you, would definitely be worth it.
The 1908S is very nice. I am not sure of the 1909S is real. It looks like it's been sandcast. Looks like there's a seam on the rim and just the texture is wrong. I certainly hope I am the one that's wrong. You'll definitely need to get that one checked out. the 1908 no worries.