With that serial, which would place the gun in the late 1920s, there should be 4 screws on the side. Usually in such cases, it turns out that the gun wears non-original post-war stocks which extend up and cover the sideplate screw farthest back.
PS: For a data point, I have a reference to #595523 shipping in February 1929, so yours likely shipped sometime not too long before that.
Last edited by Absalom; 06-14-2018 at 09:14 PM.
|