All of these are '52 shipped except the Chief Special Airweight which is a '53 and the Centennials which also are '53s.
Left to right: .22/32 Kit Gun Transitional, .32 Regulation Police & .32 Hand Ejectors, .38 Regulation Police and Terrier.
Left to right: Centennials, Chiefs Special (Steel) round-smooth-serrated front sights, Chiefs Special Airweight.