Thread: Question about "pre" and screw numbers
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Old 07-12-2018, 01:28 PM
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kscharlie kscharlie is online now
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I believe you have the dates incorrect. As I understand it, the top sideplate screw was eliminated in 1956. Model numbers began being stamped in 1957/1958. Finally, the screw in front of the trigger guard was eliminated in 1962. Thus, there was about a 2 year time frame for 4-screw non model marked, then another 4 year time frame for 4-screw model marked revolvers. As with all things S&W, this is an approximation. YMMV.
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