PRIZE COMICS WESTERN #75, 1949. From right in the middle of the S&K years, this is a nice sample of their work, with some gorgeous inking and all sorts of great classic western cliche touches.
WYATT EARP #25, 1959. Christopher Rule is the attributed inker, and it's a pretty cover. The background figures are what make it for me, especially the guy seemingly intent on climbing on top of the saloon.
RAWHIDE KID #36, 1963. Dick Ayers inks, and a great set-up for the interior story.