Quote Originally Posted by m1903rifle View Post
Picture of the front screw hole.
I don't have the unmarked version, I've just inspected them which leads me to the original question. The Chinese copies are obvious if you know what to look for, mostly the reinforcement dimples in the box. But some I have inspected were like unmarked SC but with the straight stamping behind the front screw hole unlike the SC that is curved. My SC is also unmarked but this is normal from my research.