A friend has purchased a S&W K-38 Target Masterpiece five screw with full-size checkered grips with a diamond around the screw hole. The serial number is K160XXX on the frame, yoke, and cylinder.
We believe it is a pre-Model 14 because it has an adjustable rear sight and Patridge front sight. The chambers in the cylinder are numbered 1 thru 6 in front of the cylinder notches.
Is it a pre-14? Are the grips from a later K-frame gun? SCS&W indicates year of manufacture was 1952.
Thank you