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If it's a "C D", that would indicate either an Apr 1957 or Apr 1983 date.Depending on barrel length or wood style, those may or may not work.In the workplace today, we need to be known to others as well as ensure that others are aware of how we might be a resource for them.Whether student, young careerist, or seasoned professional, having a network of people you can tap into for information, advice and opportunities, while sharing your own, is paramount.If it's the longer barrel and plain wood, I don't think "W C" (Aug 1956 or Aug 1982) would work.With the longer barrel and "A" or "BDL" grade, "C P" (Apr 1967) would work.
However, if you do some searching on the gun auction sites, you may find some "ballpark" figures of what they're asking for them or what they've sold for.
And, over the years, they also used different checkering patterns in the "BDL" versions.
Somewhere around 1980 (give or take a year or so), they quit making the longer barreled version and only made the shorter one for both the 552 (auto) and 572 (pump) models.
They are essentially assembly and/or inspectors' marks. The serial number on mine (1975 vintage) is 18783XX.
I don't know what they used for a beginning serial number, but, if yours in considerably below mine and quite a bit greater than "0000001", I'd still venture to guess it's probably that 1967 date I mentioned before.
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