01-12-2021, 04:31 PM
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SWCA Member
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Join Date: Aug 2013
Location: Rhode Island
Posts: 6,729
Likes: 27,158
Liked 37,332 Times in 4,588 Posts
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I kind of collect M28's. The single 4" is a once fired N prefix 1973. The 4" and 6" are 1961 to 1968 S prefix examples
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Pete
I ain't no fortunate son
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