My 67 no dash has the stainless rear sight but the blade was badly beat up. It was an old duty gun from somewhere and then served with an armored car company. As part of the "Combat Revolver" refurbish a new black rear sight blade was installed while the base is still stainless. Now bead blasted with some cocobola grips from the now gone Hogue auction site. Trigger face polished smooth. Great shooter deserving of the "Combat Masterpiece" name.
The Wife's Model 67 no dash has a blued rear sight assembly and the red ramp front sight. It dates from 1975 and is ex-law enforcement (Yolo County, CA). Who knows whether the rear sight was changed before we bought it in 1992? I agree; the M-67 is a Masterpiece!