I just got this Ruger Standard, which I assume is pre-Mk I, at a local gun show this weekend. I know with the serial number (5 digit 30k's) it is a 1952-1953 model and the black emblem dates it after 1951 if I am correct. Can anyone tell me if I am correct that the red emblem ended after Sturm's death in 1951. Also, any input into this model is greatly appreciated. I am a recent gun enthusiast and really love the Ruger brand. I also own a Mk II gov. comp ss, Mk III 22/45 and am looking for that "just right " Mk IV.