Hello fellow Smith nuts, I have a 1952 K22 with a replaced cylinder and ejector rod and extractor. No numbers or markings on the cyl/rod/extractor anywhere. On the grip frame is stamped 11.52 or 11.62. I can't really be sure which. The cylinder and extractor/rod might be 1962 vintage but def not 1952 vintage. There are some markings though that might mean something on the grip frame.The action and lockup are really nice and tight. Does anyone think this replaced cylinder was likely done at the factory in 1962? Thanks!